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Sekar P, Hale G, Gakuru J, Meya DB, Boulware DR, Ellis J, Nalintya E, Bahr NC, Rajasingham R. Systematic Review of Prevalence of Histoplasma Antigenuria in Persons with HIV in Latin America and Africa. Emerg Infect Dis 2024; 30:1523-1530. [PMID: 39043389 PMCID: PMC11286068 DOI: 10.3201/eid3008.231710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024] Open
Abstract
Histoplasmosis is a fungal disease associated with substantial mortality rates among persons with advanced HIV disease. Our systematic review synthesized data on the global prevalence of Histoplasma--caused antigenuria in persons with HIV. We searched PubMed/Medline, Embase, and Scopus databases on January 3, 2023, to identify cross-sectional and cohort studies evaluating Histoplasma antigenuria prevalence among adults with HIV infection. We calculated point estimates and 95% CIs to summarize prevalence. Of 1,294 studies screened, we included 15. We found Histoplasma antigenuria among 581/5,096 (11%; 95% CI 11%-12%) persons with HIV and 483/3,789 persons with advanced HIV disease (13%; 95% CI 12%-14%). Among persons with HIV and symptoms consistent with histoplasmosis, Histoplasma antigenuria prevalence was 14% (95% CI 13%-15%; 502/3,631 participants). We determined that persons with advanced HIV disease, inpatients, and symptomatic persons might benefit from a systematic approach to early detection of histoplasmosis using urine antigen testing.
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Leitão TDMJS, Rodrigues NBS, Farias LABG, Henn GADL, Mota RS, Costa RDS, Damasceno LS. Histoplasmosis in non-immunosuppressed patients from an endemic area in Northeastern Brazil. Med Mycol 2024; 62:myae059. [PMID: 38970370 DOI: 10.1093/mmy/myae059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/29/2024] [Accepted: 06/20/2024] [Indexed: 07/08/2024] Open
Abstract
Differently from immunocompromised patients, very little information is available in the literature regarding the clinical presentation, epidemiology, and outcomes of histoplasmosis in non-immunosuppressed individuals living in endemic areas. This retrospective case series study was carried out by reviewing the medical records of non-immunocompromised patients with histoplasmosis, residents in a hyperendemic area in northeastern Brazil, between 2011 and 2022. Thirty HIV-negative patients were identified with histoplasmosis, and 19 cases met the inclusion criteria: three had acute, five subacute and one chronic pulmonary forms; two with mediastinal picture and eight had disseminated disease (two with severe symptoms). The median age of our sample was 32.7 years old [interquartile range: 24-45]. Most of the patients were male (male-to-female ratio = 15:4) and resided in the state capital (n = 9). The majority had a previous history of exposure to well-known risk factors for Histoplasma infection. Pulmonary nodules were observed in all subacute form, two patients (acute and subacute forms) were initially treated empirically for pulmonary tuberculosis; one death was registered in the subacute form. The chronic pulmonary form of histoplasmosis was diagnosed in one patient only after the symptoms persisted despite specific treatment. The primary clinical manifestations of the moderate form of DH were enlarged lymph nodes, with histopathology being the main diagnostic method. The cases were detected as isolated occurrences and not as an outbreak, suggesting that exposure to Histoplasma can be more widespread than presumed. Despite the self-limiting nature of the disease, death can occur even in previously heathy patients.
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Affiliation(s)
- Terezinha do Menino Jesus Silva Leitão
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Saúde Comunitária, Postal code 60441-750, Fortaleza, Ceará, Brazil
- Hospital São José de Doenças Infecciosas, Postal code 60455-610, Fortaleza, Ceará, Brazil
| | | | - Luís Arthur Brasil Gadelha Farias
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Saúde Comunitária, Postal code 60441-750, Fortaleza, Ceará, Brazil
- Hospital São José de Doenças Infecciosas, Postal code 60455-610, Fortaleza, Ceará, Brazil
| | | | - Rosa Salani Mota
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Saúde Comunitária, Postal code 60441-750, Fortaleza, Ceará, Brazil
| | - Rafael de Sousa Costa
- Fundação de Ciência e Pesquisa Maria Ione Xerez Vasconcelos - FUNCIPE, Postal code 60040-430, Fortaleza, Ceará, Brazil
| | - Lisandra Serra Damasceno
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Saúde Comunitária, Postal code 60441-750, Fortaleza, Ceará, Brazil
- Hospital São José de Doenças Infecciosas, Postal code 60455-610, Fortaleza, Ceará, Brazil
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Sepúlveda VE, Goldman WE, Matute DR. Genotypic diversity, virulence, and molecular genetic tools in Histoplasma. Microbiol Mol Biol Rev 2024; 88:e0007623. [PMID: 38819148 PMCID: PMC11332355 DOI: 10.1128/mmbr.00076-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024] Open
Abstract
SUMMARYHistoplasmosis is arguably the most common fungal respiratory infection worldwide, with hundreds of thousands of new infections occurring annually in the United States alone. The infection can progress in the lung or disseminate to visceral organs and can be difficult to treat with antifungal drugs. Histoplasma, the causative agent of the disease, is a pathogenic fungus that causes life-threatening lung infections and is globally distributed. The fungus has the ability to germinate from conidia into either hyphal (mold) or yeast form, depending on the environmental temperature. This transition also regulates virulence. Histoplasma and histoplasmosis have been classified as being of emergent importance, and in 2022, the World Health Organization included Histoplasma as 1 of the 19 most concerning human fungal pathogens. In this review, we synthesize the current understanding of the ecological niche, evolutionary history, and virulence strategies of Histoplasma. We also describe general patterns of the symptomatology and epidemiology of histoplasmosis. We underscore areas where research is sorely needed and highlight research avenues that have been productive.
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Affiliation(s)
- Victoria E. Sepúlveda
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - William E. Goldman
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Daniel R. Matute
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Castellanos Reynosa ME, Caal ME, Mercado D, Medina N, Pérez JC, Emeto TI, Arathoon E. Clinical characteristics, diagnosis, treatment and outcomes of patients living with HIV and co-infected with tuberculosis and histoplasmosis: a 5-y retrospective case series. Trans R Soc Trop Med Hyg 2024; 118:391-398. [PMID: 38279781 PMCID: PMC11149374 DOI: 10.1093/trstmh/trad104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/18/2023] [Accepted: 01/01/2024] [Indexed: 01/28/2024] Open
Abstract
BACKGROUND In Latin America, tuberculosis (TB) and histoplasmosis are two of the most frequent opportunistic infections affecting people living with human immunodeficiency virus (HIV). However, there are limited data on the clinical characteristics and outcomes of patients with concurrent TB and histoplasmosis infections. METHODS This was a retrospective observational study to describe the clinical, epidemiological and laboratory characteristics and outcomes of 21 patients living with HIV (PLHIV) who were diagnosed with concurrent histoplasmosis and TB between 2017 and 2021 in Guatemala City, Guatemala. RESULTS Most patients were male and were newly diagnosed with HIV. All patients had advanced HIV disease (AHD). They presented with a median CD4 count of 20 cells/µl. The most common symptoms reported by the patients were fever, weight loss, cough and diarrhoea. Twelve patients died within 6 months of baseline evaluation, for a mortality rate of 57.1%. CONCLUSIONS PLHIV with concurrent TB and histoplasmosis infections are characterised by AHD, predominantly presenting with disseminated forms of these infections and with unspecific symptoms and signs. This evidence calls for early HIV and opportunistic infection screening and insights into the challenges and opportunities for the efficient diagnostic and therapeutic management of patients with AHD with concurrent histoplasmosis and TB infections.
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Affiliation(s)
- María Eugenia Castellanos Reynosa
- Public Health and Tropical Medicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | | | - Danicela Mercado
- Clínica Familiar Luis Ángel García, Hospital General San Juan de Dios, Guatemala City, Guatemala
| | - Narda Medina
- Asociación de Salud Integral, Guatemala City, Guatemala
| | | | - Theophilus I Emeto
- Public Health and Tropical Medicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Eduardo Arathoon
- Asociación de Salud Integral, Guatemala City, Guatemala
- Clínica Familiar Luis Ángel García, Hospital General San Juan de Dios, Guatemala City, Guatemala
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Nacher M, Lucarelli A, Van-Melle A, Basurko C, Rabier S, Chroum M, Santana T, Verin K, Bienvenu K, El Guedj M, Vaz T, Cisse H, Epelboin L, Le Turnier P, Abboud P, Djossou F, Pradinaud R, Adenis A, Couppié P. Forty Years of HIV Research in French Guiana: Comprehend to Combat. Pathogens 2024; 13:459. [PMID: 38921756 PMCID: PMC11206598 DOI: 10.3390/pathogens13060459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 06/27/2024] Open
Abstract
The drivers of the HIV epidemic, the viruses, the opportunistic infections, the attitudes and the resources allocated to the fight against HIV/AIDS, vary substantially across countries. French Guiana, at the crossroads between Amazonian South America and the Caribbean, constitutes a singular context with poor populations and rich country health funding, which has allowed researchers to gather lots of information on the particulars of our epidemic. We aimed to focus on the little known story of forty years of HIV research in French Guiana and emphasize how local research intertwined with public health action has yielded continuous progress, despite the difficult social conditions of the affected population. We searched Web of Science and associated local experts who worked through much of the epidemic in selecting the most meaningful products of local research for clinical and public health outcomes in French Guiana. Research tools and facilities included, from 1991 onwards, the HIV hospital cohort and the HIV-histoplasmosis cohort. Ad hoc studies funded by the ANRS or the European Regional Development fund shed light on vulnerable groups. The cumulative impact of prospective routine collection and focused efforts has yielded a breadth of knowledge, allowing for informed decisions and the adaptation of prevention, testing and care in French Guiana. After this overview, we emphasize that the close integration of research and public health was crucial in adapting interventions to the singular context of French Guiana.
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Affiliation(s)
- Mathieu Nacher
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
- Centre d’Investigation Clinique INSERM 1424, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.V.-M.); (C.B.)
- Département Formation Recherche en Santé, Université de Guyane, 97300 Cayenne, French Guiana;
- Institut Santé des Populations en Amazonie, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
| | - Aude Lucarelli
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Astrid Van-Melle
- Centre d’Investigation Clinique INSERM 1424, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.V.-M.); (C.B.)
| | - Célia Basurko
- Centre d’Investigation Clinique INSERM 1424, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.V.-M.); (C.B.)
| | - Sébastien Rabier
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Malorie Chroum
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Thiago Santana
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Karine Verin
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Ketty Bienvenu
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
| | - Myriam El Guedj
- Hôpital de Jour Adultes, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
| | - Tania Vaz
- Hôpital de Jour Adultes, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
| | - Hawa Cisse
- Hôpital de Jour Adultes, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
| | - Loïc Epelboin
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (L.E.); (P.L.T.); (P.A.); (F.D.)
| | - Paul Le Turnier
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (L.E.); (P.L.T.); (P.A.); (F.D.)
| | - Philippe Abboud
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (L.E.); (P.L.T.); (P.A.); (F.D.)
| | - Félix Djossou
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (L.E.); (P.L.T.); (P.A.); (F.D.)
| | - Roger Pradinaud
- Service de Dermatologie Vénéréologie, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana;
| | - Antoine Adenis
- Comité de Coordination Régionale de la Lutte contre le VIH et les IST, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.L.); (S.R.); (M.C.); (T.S.); (K.V.); (K.B.); (A.A.)
- Centre d’Investigation Clinique INSERM 1424, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana; (A.V.-M.); (C.B.)
- Département Formation Recherche en Santé, Université de Guyane, 97300 Cayenne, French Guiana;
- Institut Santé des Populations en Amazonie, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
| | - Pierre Couppié
- Département Formation Recherche en Santé, Université de Guyane, 97300 Cayenne, French Guiana;
- Institut Santé des Populations en Amazonie, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana
- Service de Dermatologie Vénéréologie, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana;
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Aguilar G, Lopez G, Sued O, Medina N, Caceres DH, Pereira J, Jordan A, Lezcano V, Vicenti C, Benitez G, Samudio T, Perez F. Implementation of a rapid diagnostic assay package for cryptococcosis, histoplasmosis and tuberculosis in people living with HIV in Paraguay. BMC Infect Dis 2024; 24:406. [PMID: 38627642 PMCID: PMC11020460 DOI: 10.1186/s12879-024-09257-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Opportunistic infections (OIs) are common causes of mortality among people living with HIV (PLHIV). We determined prevalence and 30-day mortality due to histoplasmosis, cryptococcosis, and TB in PLHIV with advanced HIV disease (AHD). METHODS PLHIV 18 years and older, with a CD4 + T-cell count of less than 350 cells/mm3 newly diagnosed with HIV infection or re-engaged in care after being without ART for more than 90 days (Group A). The second group included symptomatic PLHIV regardless of ART status or CD4 + T-cell count (Group B); all followed for 30 days. Detection of Histoplasma Ag (HisAg) in urine was done by enzyme immunoassay (EIA), Cryptococcus antigen (CrAg) was detected in serum and cerebrospinal fluid (CSF) specimens by lateral flow assay (LFA), and lipoarabinomannan (LAM) detection in urine was by LFA (TB LAM) and in sputum by GeneXpert for diagnosis of Mycobacterium infections. RESULTS From August 2021 to June 2022, 491 PLHIV were enrolled; 482 (98%) had a CD4 + T-cell result, and 381 patients (79%) were classified with AHD according to CD4 + T-cell count (< 200 CD4/mm3). Frequency of an OI was 38% (n = 145/381). Antigen test positivity rate was 16% (72/467) for TB-LAM, 9% (43/464) for HisAg, and 11% (51/484) for CrAg. Twenty-one of 34 (62%) patients receiving CSF CrAg tests were positive, confirming meningitis. Significant differences in 30-day mortality were observed in patients with an OI (16%) vs. no OI (7%) (p = 0.002). Mortality was highest in patients with histoplasmosis (25%), co-infection (22%), cryptococcosis (18% overall; 19% for cryptococcal meningitis), and TB (10%). CONCLUSIONS TB and fungal OIs, including co-infection, were common in PLHIV in Paraguay and had high associated mortality. Laboratories and health facilities need access to CD4 + T-cell testing and rapid diagnostic assays.
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Affiliation(s)
- Gloria Aguilar
- National HIV Program, Asunción, Paraguay
- Facultad de Ciencias de la Salud, Universidad Sudamericana, Amambay, Paraguay
| | | | - Omar Sued
- Communicable Diseases Prevention, Control, and Elimination and Environmental Determinants of Health Department, Pan American Health Organization, 525 23rd St. NW, 20037, Washington, DC, USA
| | - Narda Medina
- Mycotic Diseases Branch, Division of Foodborne, Waterborne, and Environmental Diseases (DFWED), ASRT, Inc., Centers for Disease Control and Prevention, 30333, Atlanta, GA, USA
| | - Diego H Caceres
- IMMY, Inc., 73069, Norman, OK, USA
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Jose Pereira
- Centro de Especialidades Dermatológicas, Ministerio de Salud Pública y Bienestar Social, San Lorenzo, Paraguay
| | - Alexander Jordan
- Mycotic Diseases Branch-Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | | | | | | | | | - Freddy Perez
- Communicable Diseases Prevention, Control, and Elimination and Environmental Determinants of Health Department, Pan American Health Organization, 525 23rd St. NW, 20037, Washington, DC, USA.
- Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil.
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Bourne-Watrin M, Adenis A, Doppelt G, Zappa M, Epelboin L, Nacher M, Bigot J, Drak Alsibai K, Blaizot R, Blanchet D, Demar M, Guillot G, Djossou F, Couppié P. Pulmonary Histoplasmosis in People Living with Human Immunodeficiency Virus in French Guiana: Clinical Epidemiology, Medical Imaging and Prognostic. Mycopathologia 2023; 188:1065-1078. [PMID: 37839020 PMCID: PMC10687118 DOI: 10.1007/s11046-023-00799-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Histoplasmosis is mainly described as a disseminated disease in people living with HIV (PLHIV). Compared to historical descriptions in immunocompetent individuals, knowledge is lacking on the detailed clinical and radiological findings and outcomes of pulmonary histoplasmosis (PH). Overlooked or misdiagnosed with other AIDS-defining condition, prognostic of PLHIV may be at risk because of inappropriate care. METHODS A retrospective multicentric study was conducted in PLHIV from French Guiana between January 1988 and October 2019. Proven PH were documented through mycological direct examination, culture, or histology. Patients with concomitant respiratory infections were excluded. RESULTS Among 65 patients, sex ratio M:F was 2.4 with a median age of 39 years [IQR 25-75%: 34-44]. Median CD4 count was 24 cells/mm3 [11-71], with histoplasmosis as the AIDS-defining condition in 88% and concomitant AIDS-defining conditions in 29%. Clinical findings were fever (89%), cough (58%), dyspnea (35%), expectoration (14%), and hemoptysis (5%). Sixty-one X-rays and 24 CT-scans were performed. On X-rays, an interstitial lung disease was mainly found (77%). On CT-scans, a nodular pattern was predominant (83%): mostly miliary disease (63%), but also excavated nodules (35%). Consolidations were present in 46%, associated with miliary disease in 21%. Thoracic lymphadenopathies were found in 58%, mainly hilar and symmetric (33%). Despite antifungal treatment, case-fatality rate at one month was 22%. CONCLUSION When faced with an interstitial lung disease on X-rays or a miliary pattern on CT-scans in advanced PLHIV, physicians in endemic areas, apart from tuberculosis or pneumocystosis, should include histoplasmosis as part of their differential diagnoses.
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Affiliation(s)
- Morgane Bourne-Watrin
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Cayenne, France.
| | - Antoine Adenis
- Centre d'Investigation Clinique Antilles Guyane, Inserm CIC 1424, Centre Hospitalier de Cayenne, Cayenne, France
| | - Gary Doppelt
- Service de Radiologie, Centre Hospitalier de Cayenne, Cayenne, France
| | - Magaly Zappa
- Service de Radiologie, Centre Hospitalier de Cayenne, Cayenne, France
| | - Loïc Epelboin
- Centre d'Investigation Clinique Antilles Guyane, Inserm CIC 1424, Centre Hospitalier de Cayenne, Cayenne, France
- Unité des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, Cayenne, France
| | - Mathieu Nacher
- Centre d'Investigation Clinique Antilles Guyane, Inserm CIC 1424, Centre Hospitalier de Cayenne, Cayenne, France
| | - Jeanne Bigot
- Service de Parasitologie-Mycologie, Centre Hospitalier Saint Antoine APHP, Paris, France
| | - Kinan Drak Alsibai
- Laboratoire d'Anatomie et Cytologie Pathologique, Centre Hospitalier de Cayenne, Cayenne, France
| | - Romain Blaizot
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Cayenne, France
| | - Denis Blanchet
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier de Cayenne, Cayenne, France
| | - Magalie Demar
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier de Cayenne, Cayenne, France
| | - Geneviève Guillot
- Service de Médecine B, Centre Hospitalier de Cayenne, Cayenne, France
| | - Félix Djossou
- Unité des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, Cayenne, France
| | - Pierre Couppié
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Cayenne, France
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8
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Chen L, Hu D, Zhang C, Wu T, Cheng X, Hagen F, Zhu H, Deng S. Histoplasmosis: An epidemiological and clinical update in China, review and a case report. Mycology 2023; 15:101-109. [PMID: 38558846 PMCID: PMC10976997 DOI: 10.1080/21501203.2023.2259934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/11/2023] [Indexed: 04/04/2024] Open
Abstract
Histoplasmosis is a systemic mycosis caused by the dimorphic fungus in the genus Histoplasma. Histoplasmosis is overlooked in China. This study aims to provide an epidemiological and clinical update on histoplasmosis in China by literature review. We reviewed cases of histoplasmosis reported in recent 11 years and described a case of histoplasmosis-triggered hemophagocytic lymphohistiocytosis (HLH) in an immunocompetent patient. A total of 225 cases of histoplasmosis diagnosed in China between 2012 and 2022 were involved in this study, compared with 300 cases reviewed from 1990 to 2011, an increasing number of cases of histoplasmosis have been diagnosed in the last 11 years. The majority of cases of histoplasmosis were autochthonous cases, mainly from provinces Sichuan (56/225, 24.9%), Hunan (50/225, 22.2%), Guangdong (31/225, 13.8%), and Yunnan (24/225, 10.7%). Higher incidence (52.5%, 53/99) of histoplasmosis occurred in immunocompetent patients which is similar to those from the previous 21 years, and the prevalence of the disease did not vary highly over time. Of note, the number of histoplasmosis cases is increasing, and the geographic distribution is shifting southwards over time. Improved awareness is critically important for informing clinical practice in China.
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Affiliation(s)
- Lihua Chen
- Department of Medicine Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Danyang Hu
- Life Science College, University of Essex, Colchester, UK
| | - Congming Zhang
- Department of hematology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Tianrui Wu
- Department of Medicine Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xiangning Cheng
- Department of Medicine Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ferry Hagen
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - Hui Zhu
- Department of Gynaecology and Obstetrics, The First Hospital of Suzhou University, Suzhou, China
| | - Shuwen Deng
- Medical Center in The People’s Hospital of SND, Suzhou, China
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López LF, Tobón ÁM, Cáceres DH, Chiller T, Litvintseva AP, Gade L, González Á, Gómez BL. Application of Real-Time PCR Assays for the Diagnosis of Histoplasmosis in Human FFPE Tissues Using Three Molecular Targets. J Fungi (Basel) 2023; 9:700. [PMID: 37504689 PMCID: PMC10381543 DOI: 10.3390/jof9070700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
Histoplasmosis is a fungal infection caused by the thermally dimorphic fungus Histoplasma capsulatum. This infection causes significant morbidity and mortality in people living with HIV/AIDS, especially in countries with limited resources. Currently used diagnostic tests rely on culture and serology but with some limitations. No molecular assays are commercially available and the results from different reports have been variable. We aimed to evaluate quantitative real-time PCR (qPCR) targeting three protein-coding genes of Histoplasma capsulatum (100-kDa, H and M antigens) for detection of this fungus in formalin-fixed paraffin-embedded (FFPE) samples from patients with proven histoplasmosis. The sensitivity of 100-kDa, H and M qPCR assays were 93.9%, 91% and 57%, respectively. The specificity of 100-kDa qPCR was 93% when compared against samples from patients with other mycoses and other infections, and 100% when samples from patients with non-infectious diseases were used as controls. Our findings demonstrate that real-time PCR assays targeting 100-kDa and H antigen showed the most reliable results and can be successfully used for diagnosing this mycosis when testing FFPE samples.
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Affiliation(s)
- Luisa F López
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín 050034, Colombia
| | - Ángela M Tobón
- Instituto Colombiano de Medicina Tropical, Universidad CES, Medellín 055450, Colombia
| | - Diego H Cáceres
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín 050034, Colombia
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Tom Chiller
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | | | - Lalitha Gade
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Ángel González
- Basic and Applied Microbiology Research Group (MICROBA), School of Microbiology, Universidad de Antioquia, Medellín 050010, Colombia
| | - Beatriz L Gómez
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota 111221, Colombia
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10
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Cáceres DH, Gómez BL, Tobón ÁM, Restrepo Á, Chiller T, Lindsley MD, Meis JF, Verweij PE. Tackling Histoplasmosis Infection in People Living with HIV from Latin America: From Diagnostic Strategy to Public Health Solutions. J Fungi (Basel) 2023; 9:jof9050558. [PMID: 37233269 DOI: 10.3390/jof9050558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/27/2023] Open
Abstract
Histoplasmosis, caused by the thermally dimorphic fungus Histoplasma spp., is a disease with a broad clinical spectrum, presenting from asymptomatic/flu-like symptoms to progressive disseminated disease in people with immunosuppression. In recent years, the concept of histoplasmosis as a disease restricted to the American continent has changed, as now histoplasmosis is reported in many regions around the world. In Latin America, histoplasmosis represents a threat, especially in people with advanced HIV disease (AHD). Diagnosis of histoplasmosis in people living with HIV (PLHIV) is challenging due to the low index of suspicion of the disease, non-specificity of signs and symptoms, and limited access to specific laboratory testing, while the diagnostic delay is significantly associated with mortality. In the last decade, novel diagnostic tests have been developed for the rapid detection of histoplasmosis, such as commercial kits for antigen detection. Furthermore, advocacy groups were created that presented histoplasmosis as a public health problem, with emphasis on patients at risk of progressive disseminated disease. This review aims to discuss the impact of histoplasmosis associated with AHD in Latin America and the strategies employed to tackle histoplasmosis, from the implementation of laboratory testing to disease advocacy and public health interventions.
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Affiliation(s)
- Diego H Cáceres
- Center of Expertise in Mycology Radboudumc/Canisius Wilhelmina Hospital, 6532 SZ Nijmegen, The Netherlands
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota 111221, Colombia
- IMMY, Norman, OK 73069, USA
| | - Beatriz L Gómez
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota 111221, Colombia
| | - Ángela M Tobón
- Instituto Colombiano de Medicina Tropical, Universidad CES, Medellín 055450, Colombia
| | - Ángela Restrepo
- COLCIENCIAS Emeritus Researcher, Ministerio de Ciencias, Tecnología e Innovación, Bogota 111321, Colombia
| | - Tom Chiller
- Mycotic Diseases Branch, Centers for Disease Control and Prevention (CDC), Atlanta, GA 30329, USA
| | - Mark D Lindsley
- Mycotic Diseases Branch, Centers for Disease Control and Prevention (CDC), Atlanta, GA 30329, USA
| | - Jacques F Meis
- Center of Expertise in Mycology Radboudumc/Canisius Wilhelmina Hospital, 6532 SZ Nijmegen, The Netherlands
- Department I of Internal Medicine, Excellence Center for Medical Mycology, University Hospital Cologne, 50931 Cologne, Germany
| | - Paul E Verweij
- Center of Expertise in Mycology Radboudumc/Canisius Wilhelmina Hospital, 6532 SZ Nijmegen, The Netherlands
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11
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Robertson E, Abera C, Wood K, Deressa K, Mesfin S, Scantlebury C. Striving towards access to essential medicines for human and animal health; a situational analysis of access to and use of antifungal medications for histoplasmosis in Ethiopia. PLoS One 2023; 18:e0278964. [PMID: 36893127 PMCID: PMC9997978 DOI: 10.1371/journal.pone.0278964] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/25/2022] [Indexed: 03/10/2023] Open
Abstract
Antifungal medications are vital in combatting fungal diseases that affect over a billion people annually. Antifungal medications for people and equids are scarce in Ethiopia, where lack of resources to treat fungal infection, in particular histoplasmosis, is a major health challenge. Histoplasmosis is endemic within the equine population in Ethiopia, where it is estimated that one in five horses are infected. This disease has far reaching impacts on equine welfare and the socio-economic wellbeing of families. The burden of histoplasmosis in people in Ethiopia is currently unknown, representing a blind spot in public health surveillance. Previous research has identified contact with wildlife, and domestic animal species as possible transmission pathways for histoplasmosis however, questions remain about the role of equids in human histoplasmosis. Given the close proximity of people and animals in this setting, the high level of endemic disease among equids, and the common sources of anti-fungals in Ethiopia, our study adopted a One-Health approach to examine how systemic issues affect access to, and use of antifungals to treat histoplasmosis among people and equids. A qualitative study was conducted in 6 urban regions of Oromia, Ethiopia in December 2018, incorporating semi-structured face-to-face interviews and focus group discussions. Twenty-seven individual interviews were held with doctors (n = 7), pharmacists (n = 12), veterinarians (n = 5), para-veterinarians (n = 2) and an equid owner (n = 1). Eleven focus groups were conducted with equid owners (n = 42), 3 with veterinarians (n = 6), 1 with para-veterinarians (n = 2) and 1 with pharmacists (n = 2). Transcripts were analysed using thematic analysis, and dimensions of key themes conceptualised and compared. Two overarching themes namely, 'Structural', and 'Human factors', summarised the main limitations to access to antifungal medications. 'Structural factors' included the national reliance on importation of medicines or pharmaceutical ingredients, inaccurate demand forecasting due to poor recording of the shortfall within the pharmaceutical supply chain, deficiencies in diagnostic capacity for fungal disease and, a healthcare system funded with a significant component of out-of-pocket expenditure. 'Human factors' that influenced access to antifungals included the perception of the expense of antifungals compared with competing needs such as food and education, the social stigma attached to histoplasmosis that could lead to delays in treatment seeking and, readily available home remedies or alternative treatment options. Furthermore, it was reported that trust in healthcare and veterinary provisions was undermined by a perceived lack of efficacious medications. Access to antifungals remains an urgent public health and animal welfare concern in Ethiopia. Key points within the supply and distribution chain that affect access to anti-fungals are identified, and policies that facilitate anti-fungal procurement and distribution should be reviewed. This paper highlights the structural, socio-economic and cultural factors influencing the management of infection with histoplasmosis, including how it is understood, identified and treated. This study identifies areas where further cross-sectorial work is needed to address these factors to improve disease control and clinical outcomes observed in human and animal histoplasmosis within Ethiopia.
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Affiliation(s)
- Eleanor Robertson
- Department of Livestock and One Health, Institute of Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Cherinet Abera
- Histoplasmosis Research Group, Care of SPANA Bishoftu, Brooke Addis Ababa, Addis Ababa, Ethiopia
| | - Kelly Wood
- Department of Livestock and One Health, Institute of Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Kabeba Deressa
- Histoplasmosis Research Group, Care of SPANA Bishoftu, Brooke Addis Ababa, Addis Ababa, Ethiopia
| | | | - Claire Scantlebury
- Department of Livestock and One Health, Institute of Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
- * E-mail:
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12
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Oladele RO, Osaigbovo II, Akanmu AS, Adekanmbi OA, Ekeng BE, Mohammed Y, Alex-Wele MA, Okolo MO, Ayanbeku ST, Unigwe US, Akase IE, Dan-Jumbo A, Isralski D, Denning DW, Pasqualotto AC, Chiller T. Prevalence of Histoplasmosis among Persons with Advanced HIV Disease, Nigeria. Emerg Infect Dis 2022; 28:2261-2269. [PMID: 36286009 PMCID: PMC9622240 DOI: 10.3201/eid2811.220542] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
We sought to determine the prevalence of probable disseminated histoplasmosis among advanced HIV disease (AHD) patients in Nigeria. We conducted a cross-sectional study in 10 sites across 5 of 6 geopolitical zones in Nigeria. We identified patients with urinary samples containing CD4 cell counts <200 cells/mm3 or World Health Organization stage 3 or 4 disease who also had >2 clinical features of disseminated histoplasmosis, and we tested them for Histoplasma antigen using a Histoplasma enzyme immune assay. Of 988 participants we recruited, 76 (7.7%) were antigen-positive. The 76 Histoplasma antigen-positive participants had significantly lower (p = 0.03) CD4 counts; 9 (11.8%) were also co-infected with tuberculosis. Most antigen-positive participants (50/76; 65.8%; p = 0.015) had previously received antiretroviral treatment; 26/76 (34.2%) had not. Because histoplasmosis is often a hidden disease among AHD patients in Nigeria, Histoplasma antigen testing should be required in the AHD package of care.
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13
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Valdez AF, Miranda DZ, Guimarães AJ, Nimrichter L, Nosanchuk JD. Pathogenicity & Virulence of Histoplasma capsulatum - a multifaceted organism adapted to intracellular environments. Virulence 2022; 13:1900-1919. [PMID: 36266777 DOI: 10.1080/21505594.2022.2137987] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Histoplasmosis is a systemic mycosis caused by the thermally dimorphic fungus Histoplasma capsulatum. Although healthy individuals can develop histoplasmosis, the disease is particularly life-threatening in immunocompromised patients, with a wide range of clinical manifestations depending on the inoculum and virulence of the infecting strain. In this review, we discuss the established virulence factors and pathogenesis traits that make H. capsulatum highly adapted to a wide variety of hosts, including mammals. Understanding and integrating these mechanisms is a key step towards devising new preventative and therapeutic interventions.
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Affiliation(s)
- Alessandro F Valdez
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Rio de Janeiro, Brazil
| | - Daniel Zamith Miranda
- Departments of Medicine (Division of Infectious Diseases) and Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Allan Jefferson Guimarães
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia - MIP, Niterói, Rio de Janeiro, Brazil
| | - Leonardo Nimrichter
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Rio de Janeiro, Brazil
| | - Joshua D Nosanchuk
- Departments of Medicine (Division of Infectious Diseases) and Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA
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14
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Ghorra N, Goushchi A, Konopnicki D, Libois A, Lagrou K, Wind AD, Montesinos I, Hallin M, Deyi VYM. Disseminated histoplasmosis diagnosed by cross-reactivity with the Aspergillus galactomannan antigen in an HIV-positive patient. J Mycol Med 2022; 32:101244. [DOI: 10.1016/j.mycmed.2022.101244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 11/28/2022]
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15
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Adamian CMC, de Lima Mota MA, Martins AAF, Aragão MC, Carvalho MS, Meneses GC, Silva Júnior GBD, Leitão TDMJS, De Francesco Daher E. Progressive disseminated histoplasmosis in HIV-positive patients. Int J STD AIDS 2022; 33:544-553. [PMID: 35343333 DOI: 10.1177/09564624221076605] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Histoplasmosis is the most common endemic mycosis among people living with advanced HIV infection. PURPOSE Describe general aspects and challenges of this disease and its association with HIV. RESEARCH DESIGN Review of literature. STUDY SAMPLE Articles found using different combinations of terms including "disseminated histoplasmosis" and AIDS/HIV or immunosuppression in PubMed, Scopus, WHO Global health library, and Scielo database. ANALYSIS We look for information on epidemiology, pathogenesis, diagnosis, and treatment of histoplasmosis in AIDS patients. RESULTS Histoplasmosis is caused by Histoplasma capsulatum, a dimorphic fungus encountered throughout the world, mainly in soil enriched with bat and bird excreta. Progressive disseminated histoplasmosis is the main presentation of this mycosis in people living with advanced HIV and is fatal if left untreated. Symptoms include a systemic disease characterized by fever, weight loss, night sweats, skin manifestations, hepatomegaly, splenomegaly, and septic shock. Diagnostic tests include culture, visualization of H. capsulatum by direct and histopathological examination, serology, antigen, molecular, and skin testing. Patients with disseminated disease require aggressive and prolonged treatment to eradicate the pathogen and include amphotericin B and itraconazole. In many low income countries of endemic regions, histoplasmosis in HIV-positive patients is often undiagnosed or misdiagnosed as another opportunistic infection, due to the similarity in clinical manifestations and to the paucity of better diagnostic tests. CONCLUSION Histoplasmosis remains a neglected disease. Few studies about the disease and expensive treatments make it difficult to reduce the morbidity and mortality of this condition. Public health services and physicians must be aware of histoplasmosis' burden among the HIV-positive population.
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Affiliation(s)
- Caio Manuel Caetano Adamian
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil
| | - Matheus Alves de Lima Mota
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil.,School of Medicine, 28128University of Fortaleza, Fortaleza, Brazil
| | - Augusto Adler Freire Martins
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil
| | - Matheus Cardoso Aragão
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil
| | - Marina Santos Carvalho
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil
| | | | | | | | - Elizabeth De Francesco Daher
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, 28121Federal University of Ceará, Fortaleza, Brazil
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16
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Adekanmbi O, Nwanji I, Oladele R. Disseminated Histoplasmosis in an AIDS Patient with Immunologic Non-response to HAART: A Case Report. J Mycol Med 2022; 32:101271. [DOI: 10.1016/j.mycmed.2022.101271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/21/2022] [Accepted: 03/03/2022] [Indexed: 11/27/2022]
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17
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Jofre GI, Singh A, Mavengere H, Sundar G, D'Agostino E, Chowdhary A, Matute DR. An Indian lineage of Histoplasma with strong signatures of differentiation and selection. Fungal Genet Biol 2022; 158:103654. [PMID: 34942368 DOI: 10.1016/j.fgb.2021.103654] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/06/2021] [Accepted: 12/11/2021] [Indexed: 01/04/2023]
Abstract
Histoplasma, a genus of dimorphic fungi, is the etiological agent of histoplasmosis, a pulmonary disease widespread across the globe. Whole genome sequencing has revealed that the genus harbors a previously unrecognized diversity of cryptic species. To date, studies have focused on Histoplasma isolates collected in the Americas with little knowledge of the genomic variation from other localities. In this report, we report the existence of a well-differentiated lineage of Histoplasma occurring in the Indian subcontinent. The group is differentiated enough to satisfy the requirements of a phylogenetic species, as it shows extensive genetic differentiation along the whole genome and has little evidence of gene exchange with other Histoplasma species. Next, we leverage this genetic differentiation to identify genetic changes that are unique to this group and that have putatively evolved through rapid positive selection. We found that none of the previously known virulence factors have evolved rapidly in the Indian lineage but find evidence of strong signatures of selection on other alleles potentially involved in clinically-important phenotypes. Our work serves as an example of the importance of correctly identifying species boundaries to understand the extent of selection in the evolution of pathogenic lineages. IMPORTANCE: Whole genome sequencing has revolutionized our understanding of microbial diversity, including human pathogens. In the case of fungal pathogens, a limiting factor in understanding the extent of their genetic diversity has been the lack of systematic sampling. In this piece, we show the results of a collection in the Indian subcontinent of the pathogenic fungus Histoplasma, the causal agent of a systemic mycosis. We find that Indian samples of Histoplasma form a distinct clade which is highly differentiated from other Histoplasma species. We also show that the genome of this lineage shows unique signals of natural selection. This work exemplifies how the combination of a robust sampling along with population genetics, and phylogenetics can reveal the precise genetic changes that differentiate lineages of fungal pathogens.
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Affiliation(s)
- Gaston I Jofre
- Department of Biology, University of North Carolina, Chapel Hill, NC, United States
| | - Ashutosh Singh
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Heidi Mavengere
- Department of Biology, University of North Carolina, Chapel Hill, NC, United States
| | - Gandhi Sundar
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Emmanuel D'Agostino
- Department of Biology, University of North Carolina, Chapel Hill, NC, United States
| | - Anuradha Chowdhary
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Daniel R Matute
- Department of Biology, University of North Carolina, Chapel Hill, NC, United States.
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18
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A Simple Predictive Score to Distinguish between Disseminated Histoplasmosis and Tuberculosis in Patients with HIV. J Fungi (Basel) 2021; 8:jof8010016. [PMID: 35049956 PMCID: PMC8777677 DOI: 10.3390/jof8010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/16/2022] Open
Abstract
Disseminated histoplasmosis is a common differential diagnosis of tuberculosis in disease-endemic areas. We aimed to find a predictive score to orient clinicians towards disseminated histoplasmosis or tuberculosis when facing a non-specific infectious syndrome in patients with advanced HIV disease. We reanalyzed data from a retrospective study in Cayenne Hospital between January 1997-December 2008 comparing disseminated histoplasmosis and tuberculosis: 100 confirmed disseminated histoplasmosis cases and 88 confirmed tuberculosis cases were included. A simple logit regression model was constructed to predict whether a case was tuberculosis or disseminated histoplasmosis. From this model, a score may be obtained, where the natural logarithm of the probability of disseminated histoplasmosis/tuberculosis = +3.917962 × WHO performance score (1 if >2, 0 if ≤2) -1.624642 × Pulmonary presentation (1 yes, 0 no) +2.245819 × Adenopathies > 2 cm (1 yes, 0 no) -0.015898 × CD4 count - 0.001851 × ASAT - 0.000871 × Neutrophil count - 0.000018 × Platelet count + 6.053793. The area under the curve was 98.55%. The sensitivity of the model to distinguish between disseminated histoplasmosis and tuberculosis was 95% (95% CI = 88.7-98.3%), and the specificity was 93% (95% CI = 85.7.3-97.4%). In conclusion, we here present a clinical-biological predictive score, using simple variables available on admission, that seemed to perform very well to discriminate disseminated histoplasmosis from tuberculosis in French Guiana in well characterized patients.
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19
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Orkoulas-Razis D, Traver E, Merechi F, Saleeb P, Law JY. Pancytopenia in a Cameroonian Patient with AIDS. Am J Med 2021; 134:e526-e527. [PMID: 33989610 DOI: 10.1016/j.amjmed.2021.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/03/2021] [Accepted: 04/07/2021] [Indexed: 10/21/2022]
Affiliation(s)
| | - Edward Traver
- Department of Internal Medicine, Division of Infectious Diseases
| | | | | | - Jennie Y Law
- Department of Internal Medicine; Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Md
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20
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Validation and Concordance Analysis of a New Lateral Flow Assay for Detection of Histoplasma Antigen in Urine. J Fungi (Basel) 2021; 7:jof7100799. [PMID: 34682221 PMCID: PMC8539568 DOI: 10.3390/jof7100799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 12/13/2022] Open
Abstract
Histoplasmosis is a major cause of mortality in people living with HIV (PLHIV). Rapid methods to diagnose Histoplasma capsulatum disease could dramatically decrease the time to initiate treatment, resulting in reduced mortality. The aim of this study was to validate a MiraVista® Diagnostics (MVD) Histoplasma urine antigen lateral flow assay (MVD LFA) for the detection of H. capsulatum antigen (Ag) in urine and compare this LFA against the MVista® Histoplasma Ag quantitative enzyme immunoassays (MVD EIA). We assessed the MVD LFA using a standardized reference panel of urine specimens from Colombia. We tested 100 urine specimens, 26 from PLHIV diagnosed with histoplasmosis, 42 from PLHIV with other infectious diseases, and 32 from non-HIV infected persons without histoplasmosis. Sensitivity and specificity of the MVD LFA was 96%, compared with 96% sensitivity and 77% specificity of the MVD EIA. Concordance analysis between MVD LFA and the MVD EIA displayed an 84% agreement, and a Kappa of 0.656. The MVD LFA evaluated in this study has several advantages, including a turnaround time for results of approximately 40 min, no need for complex laboratory infrastructure or highly trained laboratory personnel, use of urine specimens, and ease of performing.
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21
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Bongomin F, Adetona Fayemiwo S. Epidemiology of fungal diseases in Africa: A review of diagnostic drivers. Curr Med Mycol 2021; 7:63-70. [PMID: 34553101 PMCID: PMC8443876 DOI: 10.18502/cmm.7.1.6246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/22/2020] [Accepted: 01/18/2021] [Indexed: 01/03/2023] Open
Abstract
Background and Purpose: There has been a significant increase in the burden of fungal diseases in the last few decades which has imposed a global threat to the health of humans, animals, and plants.
Epidemiology of fungal diseases is not completely understood in Africa. Most of these diseases are under-reported or not reported at all mainly due to the challenges related
to the availability of and access to fungal diagnostics and the lack of human resources in clinical and diagnostic mycology across the continent.
Therefore, it is imperative to highlight the epidemiology of the endemic and epidemic of emerging and re-emerging fungal diseases as well as their diagnostic challenges
in Africa based on the available data. Moreover, it is important to underline the existing gaps in this regard as well. Materials and Methods: For the purposes of the study, Medline and Google Scholar were searched to retrieve articles on these prominent fungal diseases, as well as their etiologies and available diagnostics. Results: It was found that histoplasmosis and other AIDS-associated mycoses have been reported in Africa, including blastomycosis, coccidioidomycosis,
and paracocci-dioidomycosis. Other reported infections were fungal neglected tropical diseases, especially sporotrichosis, dermatophytosis, mycetoma,
and chromoblastomycosis as well as emerging fungal diseases, such as Emergomyces africanus, Candida auris, and Blastomyces emzantsi. In Africa, the major drivers
of fungal diseases include human immunodeficiency infection, tuberculosis, and poverty. Conclusion: Serious fungal diseases are common in Africa; however, the true burden remains unknown.
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Affiliation(s)
- Felix Bongomin
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Gulu University, Gulu, Uganda
| | - Samuel Adetona Fayemiwo
- Department of Medical Microbiology and Parasitology, College of Medicine, University of Ibadan, University Hospital Ibadan, Ibadan, Nigeria.,Division of Infection, Immunity and Respiratory Medicine, Faculty of Biological Sciences, University of Manchester, Manchester, UK
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22
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Forno D, Samayoa B, Medina N, Arathoon E, Mejia CR, Gordillo R, Cedillos R, Rodas J, Ahlquist Cleveland A, Chiller T, Caceres DH. Diagnosis of fungal opportunistic infections in people living with HIV from Guatemala and El Salvador. Mycoses 2021; 64:1563-1570. [PMID: 34536307 PMCID: PMC8781144 DOI: 10.1111/myc.13368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/13/2021] [Accepted: 09/13/2021] [Indexed: 01/13/2023]
Abstract
Objectives Histoplasmosis and cryptococcosis are important public health problems in people living with HIV (PLHIV) in Central America. Conventional laboratory tests, such as culture and microscopy, are not optimal; however, antigen (Ag) tests are rapid, highly sensitive, and specific for diagnosis of fungal opportunistic infections (OI). The aim of this study was to describe the results of a laboratory‐based surveillance system for histoplasmosis and cryptococcosis. Methods An observational cross‐sectional study based on laboratory surveillance, was carried out in two hospitals in Guatemala and one hospital in El Salvador, between July 2012 and December 2014. Diagnosis of histoplasmosis and cryptococcosis in PLHIV were performed by culture and Ag test. Results A total of 160 PLHIV were diagnosed with fungal OI, of which, 96 (60%) were diagnosed with histoplasmosis, 62 (39%) were with cryptococcosis, and two patients (1%) were diagnosed with both fungal diseases. Of the 160 patients analysed in this study, 94 (59%) were diagnosed using only an Ag assay. CD4 cell count data were available for 136 (85%) patients; 127 (93%) patients had a CD4 count <200; and 90 (66%) had counts <50 CD4 cells per µl. Antiretroviral therapy utilisation at diagnosis was low (33%). Seventy‐one out of 160 (44%) were co‐infected with tuberculosis or other OIs. Conclusion More than half of the patients in this study were diagnosed only by rapid laboratory Ag tests. A high per cent of the patients had advanced HIV disease.
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Affiliation(s)
- Diana Forno
- Division of Global HIV & TB at the Central America Regional Office for the Centers for Disease Control and Prevention (CDC), Guatemala City, Guatemala
| | - Blanca Samayoa
- Asociación de Salud Integral, Guatemala City, Guatemala.,Facultad de Ciencias Químicas y Farmacia, Universidad de San Carlos de Guatemala, Guatemala City, Guatemala
| | - Narda Medina
- Asociación de Salud Integral, Guatemala City, Guatemala.,Clinica Familiar "Luis Ángel García", Hospital General San Juan de Dios, Guatemala City, Guatemala
| | - Eduardo Arathoon
- Asociación de Salud Integral, Guatemala City, Guatemala.,Clinica Familiar "Luis Ángel García", Hospital General San Juan de Dios, Guatemala City, Guatemala
| | | | | | | | - Jose Rodas
- Division of Global HIV & TB at the Central America Regional Office for the Centers for Disease Control and Prevention (CDC), Guatemala City, Guatemala
| | | | - Tom Chiller
- Mycotic Diseases Branch, CDC, Atlanta, GA, USA
| | - Diego H Caceres
- Mycotic Diseases Branch, CDC, Atlanta, GA, USA.,Department of Medical Microbiology, Radboud University Medical Center and Center of Expertise in Mycology Radboudumc/CWZ, Nijmegen, The Netherlands
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Tobón AM, Gómez BL. Pulmonary Histoplasmosis. Mycopathologia 2021; 186:697-705. [PMID: 34498137 DOI: 10.1007/s11046-021-00588-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/20/2021] [Indexed: 12/12/2022]
Abstract
Histoplasmosis is one of the most frequent causes of fungal respiratory infection in endemic regions, has a broad spectrum of clinical manifestations and can present in several forms. The extent of disease is determined by the number of conidia inhaled, the immune response of the host and the integrity of the respiratory tract. From an initial and most benign form, acute pulmonary histoplasmosis (an influenza-like illness that is typically asymptomatic or mild in persons without prior immune compromise), histoplasmosis can become a lifethreatening progressive disseminated infection (PDH) that affects mainly immunocompromised patients, with high morbidity and mortality. Chronic pulmonary histoplasmosis is an uncommon manifestation of Histoplasma infection, with features similar to pulmonary tuberculosis, and if it remains undiagnosed or untreated it also can cause significant morbidity. Some rare but serious complications may also occur that are produced by an excessive immune response, such as mediastinal fibrosis, histoplasmoma and broncholithiasis. Histoplasmosis is highly endemic in regions of North, Central and South America as well as being reported in parts of Asia and Africa. The risk of histoplasmosis is greatest in patients with HIV infection, especially those with CD4+ counts of <200 cells/μL. We review clinical manifestations, radiological findings and treatment options according to the clinical form (induction therapy and maintenance therapy), as well as different diagnosis tools and new laboratory tests that have been recently developed and validated and are becoming widely available. These should have an impact in reducing time for diagnosis and starting therapy and in reducing morbidity and mortality, especially in patients with HIV infection, where histoplasmosis is currently estimated to be responsible for 5-15% of AIDS-related deaths.
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Affiliation(s)
- Angela María Tobón
- Instituto Colombiano de Medicina Tropical, Universidad CES, Medellín, Colombia
| | - Beatriz L Gómez
- Translational Microbiology and Emerging Diseases (MICROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia.
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Caceres DH, Arauz AB, Flores C, Santiago E, Montoya S, Saenz C, Torres-Meneses FA, Peralta H, Zuniga-Moya JC, Lainez Arteaga IZ, Garcia A, Abdo J, Verweij PE, Chiller TM, Forno D. Implementation of rapid diagnostics assays for detection of histoplasmosis and cryptococcosis in central american people living with HIV. Mycoses 2021; 64:1396-1401. [PMID: 33966300 PMCID: PMC8596515 DOI: 10.1111/myc.13303] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 01/07/2023]
Abstract
Objectives Histoplasmosis and cryptococcosis are important public health problems in people living with HIV (PLHIV) in Central America. Conventional laboratory assays, based on microscopy and culture, are not optimal for the diagnosis of either disease. However, antigen (Ag) assays are rapid and highly accurate for the diagnosis of these infections. Methods Laboratory surveillance of PLHIV was carried out in four hospitals in Panama, Honduras and Nicaragua, between 2015 and 2019. Detection of Histoplasma antigens in urine was performed by enzyme immunoassay (EIA), and Cryptococcus antigen detection in sera and cerebrospinal fluid specimens was performed by lateral flow assay (LFA). Results A total of 4,453 PLHIV with clinical suspicion of histoplasmosis (n = 1,343) or cryptococcosis (n = 3,110; 2,721 sera and 389 CSF) were tested. Of 1,343 patients suspected of having histoplasmosis, 269 (20%) were Histoplasma Ag positive. Of 3,110 patients tested using the Cryptococcus Ag assay, 329 (11%) were positive. Honduras reported the highest positivity rates (32% for Histoplasma Ag, and 16% for Cryptococcus Ag); Panama reported the largest number of patients testing positive using the Histoplasma Ag assay (n = 201); and Nicaragua reported the largest number of patients testing positive using the Cryptococcus Ag assay (n = 170). Conclusion Here, we show how the implementation of rapid diagnostics assays impacted case detection and was useful for the care of people with advanced HIV. Rapid and accurate diagnosis could reduce mortality associated with histoplasmosis and cryptococcosis in PLHIV.
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Affiliation(s)
- Diego H Caceres
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA.,Department of Medical Microbiology, Radboud University Medical Center and Radboudumc-CWZ Center of Expertise for Mycology, Nijmegen, The Netherlands
| | | | | | | | | | - Carlos Saenz
- Centro Nacional de Diagnóstico y Referencia, Managua, Nicaragua
| | | | | | | | | | - Arturo Garcia
- LLC. HIV-TB Co-infection Surveillance Strategies for Program Planning in the Central American Region under PEPFAR, Formerly with University Research Co., Guatemala City, Guatemala
| | - Jose Abdo
- LLC. HIV-TB Co-infection Surveillance Strategies for Program Planning in the Central American Region under PEPFAR, Formerly with University Research Co., Guatemala City, Guatemala
| | - Paul E Verweij
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc-CWZ Center of Expertise for Mycology, Nijmegen, The Netherlands
| | - Tom M Chiller
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Diana Forno
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
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Martínez-Gamboa A, Niembro-Ortega MD, Torres-González P, Santiago-Cruz J, Velázquez-Zavala NG, Rangel-Cordero A, Crabtree-Ramírez B, Gamboa-Domínguez A, Reyes-Gutiérrez E, Reyes-Terán G, Lozano-Fernandez VH, Ahumada-Topete VH, Martínez-Ayala P, Manríquez-Reyes M, Ramírez-Hinojosa JP, Rodríguez-Zulueta P, Hernández-León C, Ruíz-Quiñones J, Rivera-Martínez NE, Chaparro-Sánchez A, Andrade-Villanueva J, González-Hernández LA, Cruz-Martínez S, Flores-Barrientos O, Gaytán-Martínez JE, Magaña-Aquino M, Cervantes-Sánchez A, Olivas-Martínez A, Araujo-Meléndez J, del Rocío Reyes-Montes M, Duarte-Escalante E, Frías-De León MG, Ramírez JA, Taylor ML, de León-Garduño AP, Sifuentes-Osornio J. Diagnostic accuracy of antigen detection in urine and molecular assays testing in different clinical samples for the diagnosis of progressive disseminated histoplasmosis in patients living with HIV/AIDS: A prospective multicenter study in Mexico. PLoS Negl Trop Dis 2021; 15:e0009215. [PMID: 33684128 PMCID: PMC7971897 DOI: 10.1371/journal.pntd.0009215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 03/18/2021] [Accepted: 02/06/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The progressive disseminated histoplasmosis (PDH) has been associated with severe disease and high risk of death among people living with HIV (PLWHIV). Therefore, the purpose of this multicenter, prospective, double-blinded study done in ten Mexican hospitals was to determine the diagnostic accuracy of detecting Histoplasma capsulatum antigen in urine using the IMMY ALPHA Histoplasma EIA kit (IAHE), clarus Histoplasma GM Enzyme Immunoassay (cHGEI IMMY) and MiraVista Histoplasma Urine Antigen LFA (MVHUALFA); as well as the Hcp100 and 1281-1283220SCAR nested PCRs in blood, bone-marrow, tissue biopsies and urine. METHODOLOGY/PRINCIPAL FINDINGS We included 415 PLWHIV older than 18 years of age with suspicion of PDH. Using as diagnostic standard recovery of H. capsulatum in blood, bone marrow or tissue cultures, or histopathological exam compatible, detected 108 patients (26%, [95%CI, 21.78-30.22]) with proven-PDH. We analyzed 391 urine samples by the IAHE, cHGEI IMMY and MVHUALFA; the sensitivity/specificity values obtained were 67.3% (95% CI, 57.4-76.2) / 96.2% (95% CI, 93.2-98.0) for IAHE, 91.3% (95% CI, 84.2-96.0) / 90.9% (95% CI, 87.0-94.0) for cHGEI IMMY and 90.4% (95% CI, 83.0-95.3) / 92.3% (95% CI, 88.6-95.1) for MVHUALFA. The Hcp100 nested PCR was performed on 393, 343, 75 and 297, blood, bone marrow, tissue and urine samples respectively; the sensitivity/specificity values obtained were 62.9% (95%CI, 53.3-72.5)/ 89.5% (95%CI, 86.0-93.0), 65.9% (95%CI, 56.0-75.8)/ 89.0% (95%CI, 85.2-92.9), 62.1% (95%CI, 44.4-79.7)/ 82.6% (95%CI, 71.7-93.6) and 34.9% (95%CI, 24.8-46.2)/ 67.3% (95%CI, 60.6-73.5) respectively; and 1281-1283220SCAR nested PCR was performed on 392, 344, 75 and 291, respectively; the sensitivity/specificity values obtained were 65.3% (95% CI, 55.9-74.7)/ 58.8% (95%CI, 53.2-64.5), 70.8% (95%CI, 61.3-80.2)/ 52.9% (95%CI, 46.8-59.1), 71.4% (95%CI, 54.7-88.2)/ 40.4% (95%CI, 26.4-54.5) and 18.1% (95%CI, 10.5-28.1)/ 90.4% (95%CI, 85.5-94.0), respectively. CONCLUSIONS/SIGNIFICANCE The cHGEI IMMY and MVHUALFA tests showed excellent performance for the diagnosis of PDH in PLWHIV. The integration of these tests in clinical laboratories will certainly impact on early diagnosis and treatment.
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Affiliation(s)
- Areli Martínez-Gamboa
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - María Dolores Niembro-Ortega
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Pedro Torres-González
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Janeth Santiago-Cruz
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Nancy Guadalupe Velázquez-Zavala
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Andrea Rangel-Cordero
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Brenda Crabtree-Ramírez
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Armando Gamboa-Domínguez
- Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, Mexico City, Mexico
| | - Edgardo Reyes-Gutiérrez
- Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, Mexico City, Mexico
| | - Gustavo Reyes-Terán
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas; Tlalpan, Mexico City, Mexico
| | - Víctor Hugo Lozano-Fernandez
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas; Tlalpan, Mexico City, Mexico
| | - Víctor Hugo Ahumada-Topete
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas; Tlalpan, Mexico City, Mexico
| | - Pedro Martínez-Ayala
- HIV Unit, Hospital Civil de Guadalajara “Fray Antonio Alcalde”; Guadalajara, Jalisco, Mexico
| | - Marisol Manríquez-Reyes
- Department of Internal Medicine, Hospital de Alta Especialidad de Veracruz; Veracruz, Veracruz, Mexico
| | | | - Patricia Rodríguez-Zulueta
- Department of Infectious Diseases, Hospital General Dr. Manuel Gea González; Tlalpan, Mexico City, Mexico
| | - Christian Hernández-León
- Area of Infectious Diseases, Department of Internal Medicine, Hospital General de Puebla “Dr. Eduardo Vázquez Navarro”; Puebla, Puebla, Mexico
| | - Jesús Ruíz-Quiñones
- Intensive Care Unit, Department of Internal Medicine, Hospital “Dr. Juan Graham Casasus”; Villahermosa, Tabasco, Mexico
| | - Norma Eréndira Rivera-Martínez
- Adult Infectious Diseases Department, Hospital Regional de Alta Especialidad de Oaxaca, HRAEO; San Bartolo Coyotepec, Oaxaca, Mexico
| | - Alberto Chaparro-Sánchez
- Department of Infectious Diseases, Hospital de Infectología del Centro Médico Nacional “La Raza”, Instituto Mexicano del Seguro Social; Azcapotzalco, Mexico City, Mexico
| | | | | | - Sofia Cruz-Martínez
- Adult Infectious Diseases Department, Hospital Regional de Alta Especialidad de Oaxaca, HRAEO; San Bartolo Coyotepec, Oaxaca, Mexico
| | - Oscar Flores-Barrientos
- Intensive Care Unit, Department of Internal Medicine, Hospital “Dr. Juan Graham Casasus”; Villahermosa, Tabasco, Mexico
| | - Jesús Enrique Gaytán-Martínez
- Department of Infectious Diseases, Hospital de Infectología del Centro Médico Nacional “La Raza”, Instituto Mexicano del Seguro Social; Azcapotzalco, Mexico City, Mexico
| | - Martín Magaña-Aquino
- Department of Internal Medicine, Hospital Central Dr. Ignacio Morones Prieto; San Luis Potosí, San Luis Potosí, Mexico
| | - Axel Cervantes-Sánchez
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Antonio Olivas-Martínez
- Department of Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - Javier Araujo-Meléndez
- Department of Internal Medicine, Hospital Central Dr. Ignacio Morones Prieto; San Luis Potosí, San Luis Potosí, Mexico
| | - María del Rocío Reyes-Montes
- Mycology Unit, Department of Microbiology and Parasitology, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Esperanza Duarte-Escalante
- Mycology Unit, Department of Microbiology and Parasitology, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - José Antonio Ramírez
- Mycology Unit, Department of Microbiology and Parasitology, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - María Lucia Taylor
- Mycology Unit, Department of Microbiology and Parasitology, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Alfredo Ponce de León-Garduño
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
| | - José Sifuentes-Osornio
- Department of Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; Tlalpan, Mexico City, Mexico
- * E-mail:
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Endemic and Other Dimorphic Mycoses in The Americas. J Fungi (Basel) 2021; 7:jof7020151. [PMID: 33672469 PMCID: PMC7923431 DOI: 10.3390/jof7020151] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 12/14/2022] Open
Abstract
Endemic fungi are thermally dimorphic fungi that have a limited geographic range and can cause both primary disease and opportunistic infections. The Americas are home to more genera of endemic fungi than anywhere else on earth. These include Coccidioides, Histoplasma, Blastomyces, Paracoccidioides, and Sporothrix. Endemic fungi are found across the Americas and the Caribbean, from Blastomyces gilchristi, which extends into the northeast corners of North America, to Histoplasma capsulatum, which occurs all the way down in the southern regions of South America and into the Caribbean Islands. Symptoms of endemic fungal infection, when present, mimic those of many other diseases and are often diagnosed only after initial treatment for a bacterial or viral disease has failed. Endemic fungi place a significant medical burden on the populations they affect, especially in immunocompromised individuals and in resource-limited settings. This review summarizes the ecology, geographical range, epidemiology, and disease forms of the endemic fungi found in the Americas. An emphasis is placed on new and proposed taxonomic changes, including the assignment of new species names in Histoplasma, Blastomyces, and Paracoccidioides.
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Toscanini MA, Nusblat AD, Cuestas ML. Diagnosis of histoplasmosis: current status and perspectives. Appl Microbiol Biotechnol 2021; 105:1837-1859. [PMID: 33587157 DOI: 10.1007/s00253-021-11170-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 11/29/2022]
Abstract
Histoplasmosis is a worldwide-distributed systemic mycosis caused by the dimorphic fungus Histoplasma capsulatum. Its clinical manifestations range from subclinical or mild respiratory illness to progressive disseminated histoplasmosis (PDH), a life-threatening disease, whose accurate diagnosis is still challenging and limited in many countries, where this disease is highly endemic. In this regard, Histoplasma antigen testing is now included in the WHO Essential Diagnostics List. The final diagnosis of histoplasmosis is established by culture and/or visualization of the yeast cells by cytology or histopathology using specific stains. However, both procedures have limited sensitivity to detect the disease and cultures are time-consuming. Antibody detection assays are effective for the subacute and chronic clinical forms of histoplasmosis. However, their sensitivity is low in the immunocompromised host. Several molecular "in-house" tests were also developed and showed promising results, but none of these tests are commercially available and their standardization and validation are still pending. Antigen detection assays have high sensitivity in PDH cases and are of great value for the follow-up of patients with histoplasmosis; however, cross-reactivity with other related fungi are common. In addition, this assay is expensive and only performed in few laboratories. Novel protein antigen candidates have been recently identified and produced by DNA-recombinant techniques in order to obtain standardized and specific reagents for the diagnosis of histoplasmosis, as opposed to the unspecific antigens or crude extracts currently used. This review describes the currently available assays, highlighting their strengths and limitations and reports the latest approaches to achieve reliable and rapid diagnostic tests for histoplasmosis. KEY POINTS: • PDH causes thousands of deaths per year globally. • Rapid accurate diagnosis of PDH is unfeasible in many regions. • Fast, accurate, and low-cost diagnostic alternatives are currently under development.
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Affiliation(s)
- María Agustina Toscanini
- Facultad de Farmacia y Bioquímica, CONICET, Instituto de Nanobiotecnología (NANOBIOTEC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Alejandro David Nusblat
- Facultad de Farmacia y Bioquímica, CONICET, Instituto de Nanobiotecnología (NANOBIOTEC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Luján Cuestas
- CONICET, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM), Universidad de Buenos Aires, Buenos Aires, Argentina.
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Summary of Guidelines for Managing Histoplasmosis among People Living with HIV. J Fungi (Basel) 2021; 7:jof7020134. [PMID: 33673384 PMCID: PMC7918769 DOI: 10.3390/jof7020134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/31/2022] Open
Abstract
Histoplasmosis is a frequent fungal opportunistic infection in people living with HIV (PLHIV), associated every year to a total of 5% to 15% of AIDS-related deaths among this population. In 2020, the first global guidelines for diagnosing and managing disseminated histoplasmosis among PLHIV was published. This document recommends (1) detection of circulating Histoplasma antigens as the recommended laboratory assay to diagnose histoplasmosis among PLHIV; (2) the use of liposomal amphotericin for induction therapy in severe or moderately severe disease, followed by a maintenance therapy with itraconazole for 12 months; a shorter maintenance therapy could be considered if the patient is clinically stable and if immune status has improved; (3) antiretroviral therapy initiation as soon as possible among patients with histoplasmosis without involvement of central nervous system; and (4) that for the treatment of co-infection with histoplasmosis and tuberculosis (TB), treatment of TB should be initiated according to the World Health Organization treatment guidelines. Appropriate health education of providers, supportive supervision, and policy guidance for the care of PLHIV are required.
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Nacher M, Valdes A, Adenis A, Blaizot R, Abboud P, Demar M, Djossou F, Epelboin L, Misslin C, Ntab B, Louvel D, Drak Alsibai K, Couppié P. Gastrointestinal disseminated histoplasmosis in HIV-infected patients: A descriptive and comparative study. PLoS Negl Trop Dis 2021; 15:e0009050. [PMID: 33481806 PMCID: PMC7857560 DOI: 10.1371/journal.pntd.0009050] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/03/2021] [Accepted: 12/08/2020] [Indexed: 12/13/2022] Open
Abstract
Disseminated histoplasmosis is one the main AIDS-defining opportunistic infections in HIV-infected patients, notably in Latin America. The non-specific and proteiform clinical presentation leads to diagnostic delays that may lead to fatal outcomes. This retrospective multicentric study aimed to describe the frequency and manifestations of gastrointestinal histoplasmosis in French Guiana, and to compare patients with disseminated histoplasmosis with or without gastrointestinal involvement. Between January 1, 1981 and October 1, 2014 co-infections with HIV and histoplasmosis were enrolled. Inclusion criteria were: age >18 years, confirmed HIV infection; first proven episode of histoplasmosis. Among 349 cases of disseminated histoplasmosis, 245 (70%) had a gastrointestinal presentation. Half of patients with gastrointestinal signs had abdominal pain or diarrhea, mostly watery. Half of patients with abdominal pain had diarrhea (63/124) and half of those with diarrhea (63/123) had abdominal pain. A significant proportion of patients also had hepatomegaly and, to a lesser degree, splenomegaly. After adjusting for potential confounding, the presence of lymphadenopathies >2cm (AOR = 0.2, IC95 = 0.04–0.7, P = 0.01), Haitian origin (AOR = 0.04, IC95 = 0.004–0.4, P = 0.006) were associated with a lower prevalence of gastrointestinal signs and positive gastrointestinal presence of H. capsulatum. Persons with a gastrointestinal H. capsulatum were more likely to have a decreased prothrombin time, lower ferritin, lower liver enzymes, and lower concentrations of LDH than those without gastrointestinal signs and symptoms. They also had a shorter interval between symptoms onset and diagnosis. Patients with a positive gastrointestinal identification of H. capsulatum were less likely to die at 1 month than those without a gastrointestinal presentation (respectively, 4.6% vs 18.5%, P = 0.01). Subacute or chronic gastrointestinal presentations are very frequent during disseminated histoplasmosis, they seem less severe, and should lead to suspect the diagnosis in endemic areas. There were populational or geographic differences in the frequency of gastrointestinal manifestations that could not be explained. This retrospective multicentric study aimed to describe the frequency and manifestations of gastrointestinal histoplasmosis in French Guiana, and to compare patients with disseminated histoplasmosis with or without gastrointestinal involvement. Between January 1, 1981 and October 1, 2014 co-infections with HIV and histoplasmosis were enrolled. Inclusion criteria were: age >18 years, confirmed HIV infection; first proven episode of histoplasmosis. Among 349 cases of disseminated histoplasmosis, 245 (70%) had a gastrointestinal presentation. Half of patients with gastrointestinal signs had abdominal pain or diarrhea, mostly watery. Half of patients with abdominal pain had diarrhea (63/124) and half of those with diarrhea (63/123) had abdominal pain. A significant proportion of patients also had hepatomegaly and, to a lesser degree, splenomegaly. After adjusting for potential confounding, the presence of lymphadenopathies >2cm, Haitian origin were associated with a lower prevalence of gastrointestinal signs and presence of H. capsulatum. Persons with a gastrointestinal presentation were more likely to have a decreased prothrombin time, lower liver enzyme concentration, ferritin, and lower concentrations of LDH than those without gastrointestinal signs and symptoms. The delay between symptom’s onset and diagnosis was also shorter and the proportion of deaths at 1 month was significantly lower among those with gastrointestinal presence of H. capsulatum. Subacute or chronic gastrointestinal presentations are very frequent during disseminated histoplasmosis, they seem less severe, and should lead to suspect the diagnosis in endemic areas.
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Affiliation(s)
- Mathieu Nacher
- CIC INSERM 1424, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
- DFR Santé, Université de Guyane, Cayenne, Cayenne, French Guiana
- * E-mail:
| | - Audrey Valdes
- Equipe Opérationnelle d’hygiène hospitalière, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
| | - Antoine Adenis
- CIC INSERM 1424, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
- DFR Santé, Université de Guyane, Cayenne, Cayenne, French Guiana
| | - Romain Blaizot
- DFR Santé, Université de Guyane, Cayenne, Cayenne, French Guiana
- Department of dermatology, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
| | - Philippe Abboud
- Service des Maladies Infectieuses et Tropicales, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
| | - Magalie Demar
- Laboratory, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
- UMR Tropical Biome and Immunopathology, Université de Guyane, Cayenne, French Guiana
| | - Félix Djossou
- Service des Maladies Infectieuses et Tropicales, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
| | - Loïc Epelboin
- Service des Maladies Infectieuses et Tropicales, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
| | - Caroline Misslin
- Service de Médecine, Centre hospitalier de l’Ouest Guyanais, Saint Laurent du Maroni, French Guiana
| | - Balthazar Ntab
- Département d’Information Médicale, Centre hospitalier de l’Ouest Guyanais, Saint Laurent du Maroni, French Guiana
| | - Dominique Louvel
- Service de Médecine B, Gastroentérologie, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana
| | - Kinan Drak Alsibai
- Service d’Anatomopathologie, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana
| | - Pierre Couppié
- DFR Santé, Université de Guyane, Cayenne, Cayenne, French Guiana
- Department of dermatology, Centre hospitalier Andree Rosemon Cayenne, Cayenne, French Guiana
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Morote S, Nacher M, Blaizot R, Ntab B, Blanchet D, Drak Alsibai K, Demar M, Djossou F, Couppié P, Adenis A. Temporal trends of cutaneo-mucous histoplasmosis in persons living with HIV in French Guiana: Early diagnosis defuses South American strain dermotropism. PLoS Negl Trop Dis 2020; 14:e0008663. [PMID: 33075084 PMCID: PMC7595617 DOI: 10.1371/journal.pntd.0008663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 10/29/2020] [Accepted: 07/31/2020] [Indexed: 01/17/2023] Open
Abstract
Histoplasmosis is the most frequent opportunistic infection and the first cause of mortality in HIV-infected patients in French Guiana and presumably in much of Latin America. Mucocutaneous lesions of histoplasmosis are considered as rare and late manifestations of the disease. It has been debated whether the greater proportion of cutaneo-mucous presentations in South America relative to the USA was the reflection of Histoplasma strains with increased dermotropism or simply delayed diagnosis and advanced immunosuppression. The objective of this study was to describe the clinical presentation, frequency, prognosis and temporal trends of cutaneomucous histoplasmosis in French Guiana. A retrospective study of patients with AIDS-related disseminated histoplasmosis followed in the three hospitals of French Guiana was performed between 1981 and 2014. Incident cases of histoplasmosis, proved by pathology and/or mycological examinations, were studied. Mucocutaneous histoplasmosis was confirmed by a positive cutaneous or mucosal biopsy. Mucocutaneous lesions were polymorphic. Ninety percent of patients were profoundly immunocompromised patients (CD4<50/mm3) and over 80% were not on antiretroviral treatment. The frequency of mucocutaneous forms and case fatality of disseminated histoplasmosis within one month of antifungal treatment significantly decreased over time (p<0,001). In this South American territory, diagnostic and therapeutic improvements have led to the quasi disappearance of cutaneous manifestations. There may be South American dermotropism in the laboratory but at the bedside early diagnosis seems to be the main parameter explaining the proportion of cutaneomucous presentations in South America relative to the USA. Histoplasmosis is the most frequent opportunistic infection and the first cause of mortality in HIV-infected patients in French Guiana and presumably in much of Latin America. Mucocutaneous lesions of histoplasmosis are considered as rare and late manifestations of the disease. It has been debated whether the greater proportion of cutaneo-mucous presentations in South America relative to the USA was the reflection of Histoplasma strains with increased dermotropism or simply delayed diagnosis and advanced immunosuppression. The objective of this study was to describe the clinical presentation, frequency, prognosis and temporal trends of cutaneomucous histoplasmosis in French Guiana. A retrospective study of patients with AIDS-related disseminated histoplasmosis followed in the three hospitals of French Guiana was performed between 1981 and 2014. Incident cases of histoplasmosis, proved by pathology and/or mycological examinations, were studied. Mucocutaneous histoplasmosis was confirmed by a positive cutaneous or mucosal biopsy. Ninety percent of patients were profoundly immunocompromised patients (CD4<50/mm3) and over 80% were not on antiretroviral treatment. The frequency of mucocutaneous forms and case fatality of disseminated histoplasmosis within one month of antifungal treatment significantly decreased over time. Hence, in this South American territory, diagnostic and therapeutic improvements have led to the quasi-disappearance of cutaneous manifestations. There may be South American dermotropism in the laboratory but at the bedside early diagnosis seems to be the main parameter explaining the proportion of cutaneomucous presentations in South America relative to the USA.
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Affiliation(s)
- Sophie Morote
- Service de Dermatologie-vénéréologie, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Mathieu Nacher
- Centre d'Investigation Clinique Antilles Guyane, INSERM 1424, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- COREVIH Guyane, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- DFR Santé, Université de Guyane, Cayenne, French Guiana
- * E-mail:
| | - Romain Blaizot
- Service de Dermatologie-vénéréologie, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- COREVIH Guyane, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- UMR TBIP, Université de Guyane, Cayenne, French Guiana
| | - Balthazar Ntab
- Département d’Information Médicale, Centre Hospitalier de l’Ouest Guyanais, Saint Laurent du Maroni, French Guiana
| | - Denis Blanchet
- UMR TBIP, Université de Guyane, Cayenne, French Guiana
- Laboratory, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Kinan Drak Alsibai
- Service d’Anatomopathologie, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Magalie Demar
- DFR Santé, Université de Guyane, Cayenne, French Guiana
- UMR TBIP, Université de Guyane, Cayenne, French Guiana
- Laboratory, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Félix Djossou
- DFR Santé, Université de Guyane, Cayenne, French Guiana
- Laboratory, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Pierre Couppié
- Service de Dermatologie-vénéréologie, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- DFR Santé, Université de Guyane, Cayenne, French Guiana
| | - Antoine Adenis
- Centre d'Investigation Clinique Antilles Guyane, INSERM 1424, Centre Hospitalier de Cayenne, Cayenne, French Guiana
- COREVIH Guyane, Centre Hospitalier de Cayenne, Cayenne, French Guiana
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Anot K, Sharma S, Gupta M, Kaur D. Disseminated histoplasmosis and tuberculosis: dual infection in a non-endemic region. BMJ Case Rep 2020; 13:13/8/e235531. [PMID: 32843417 DOI: 10.1136/bcr-2020-235531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Histoplasmosis is a systemic fungal infection caused by Histoplasma capsulatum, a dimorphic fungus that spreads commonly by contamination of soil with bird and bat droppings. The infection remains latent in most patients until manifested by reduced immune status, for example, HIV/AIDS, corticosteroid/immunosuppressive therapy or in solid organ transplant recipients. Tuberculosis and histoplasmosis may cooccur rarely in HIV and the clinical resemblance of both diseases may hinder identification of patients' harbouring dual infection, especially in regions non-endemic for histoplasmosis. We report a case of disseminated histoplasmosis with disseminated tuberculosis in an incidentally detected patient with HIV-positive who presented with reports of fever and skin rash for 10 days. The Mantoux positivity and CT of chest and abdomen revealing multiple necrotic lymph nodes coupled with bone marrow and skin biopsy divulging histoplasmosis and tuberculosis helped us clinch the concurrent infection.
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Affiliation(s)
- Karuna Anot
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Sanjana Sharma
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Monica Gupta
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Daljinderjit Kaur
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
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Comparison of Disseminated Histoplasmosis with and without Cutaneo-Mucous Lesions in Persons Living with HIV in French Guiana. J Fungi (Basel) 2020; 6:jof6030133. [PMID: 32806526 PMCID: PMC7557946 DOI: 10.3390/jof6030133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 11/30/2022] Open
Abstract
Introduction: Histoplasmosis is the main opportunistic infection and cause of death in HIV-infected persons living with HIV in French Guiana and probably in most of Latin America. The objective of the present study was to compare cutaneomucous histoplasmosis to non-cutaneomucous histoplasmosis in French Guiana. Methods: Between 1981 and 2014 AIDS-related disseminated histoplasmosis patients followed in the three hospitals of French Guiana were retrospectively studied. Only proven incident cases of histoplasmosis, either by pathology and/or mycological analysis, were considered. Mucocutaneous histoplasmosis was ascertained by a positive mucosal or cutaneous biopsy. Results: Thirty-one patients had mucocutaneous lesions, and 318 had no mucocutaneous lesions. Patients with cutaneomucous lesions were more likely to have had prior opportunistic infections (35.5%) than those who did not have cutaneomucous lesions (19.5%). They were more likely to be very severely immunocompromised (CD4 count < 50) (90.3% versus 62.8%) and less likely to have digestive signs (32.3% versus 74.1%) and superficial adenopathies (29% versus 50.2%) than those without cutaneomucous lesions. In terms of simple biological examinations, patients with cutaneomucous lesions had fewer signs of cholestasis. The diagnosis was significantly more likely to be performed by direct examination and pathology in those with cutaneomucous lesions than in those without such lesions. On the contrary, patients with cutaneomucous lesions were less likely to be diagnosed by fungal culture than those without cutaneomucous lesions. There was a greater but non-significant risk of early death in those with cutaneomucous lesions relative to those without (OR = 2.28 (95%CI = 0.83–5.7), p = 0.056. Conclusions: Mucocutaneous forms were associated with more profound immunosuppression and perhaps risk of early death. They are easily accessible for diagnosis.
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Nacher M, Couppié P, Epelboin L, Djossou F, Demar M, Adenis A. Disseminated Histoplasmosis: Fighting a neglected killer of patients with advanced HIV disease in Latin America. PLoS Pathog 2020; 16:e1008449. [PMID: 32407383 PMCID: PMC7224450 DOI: 10.1371/journal.ppat.1008449] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Mathieu Nacher
- CIC INSERM 1424, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
- * E-mail:
| | - Pierre Couppié
- Dermatology Department, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
| | - Loic Epelboin
- Infectious Diseases Department, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
| | - Félix Djossou
- Infectious Diseases Department, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
| | - Magalie Demar
- Parasitology-Mycology laboratory, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
- UMR Tropical Biome and Immuno-pathophysiology, Université de Guyane, Cayenne French Guiana
| | - Antoine Adenis
- CIC INSERM 1424, Centre Hospitalier de Cayenne, rue des Flamboyants, Cayenne French Guiana
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Toscanini MA, Maglio DG, Capece P, Posse G, Iovannitti CA, Nusblat AD, Cuestas ML. Histoplasma capsulatum 100-kilodalton antigen: recombinant production, characterization, and evaluation of its possible application in the diagnosis of histoplasmosis. Appl Microbiol Biotechnol 2020; 104:5861-5872. [PMID: 32377899 DOI: 10.1007/s00253-020-10570-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/11/2020] [Accepted: 03/20/2020] [Indexed: 11/29/2022]
Abstract
The goal of the present work was to develop a novel reagent with potential for histoplasmosis diagnosis. For this purpose, the genetic sequence of the 100 kDa protein of Histoplasma capsulatum (Hcp100) was cloned and expressed as a secretory protein in Pichia pastoris. After optimizing the culture conditions and purifying by immobilized metal ion affinity chromatography, the highest yield of Hcp100 reached approximately 1.3 mg/l with > 90% purity in shake flasks using basal salt medium supplemented with casamino acids after 72 h of methanol induction. To investigate its potential for diagnosis, its detection in urine samples using specific polyclonal antibodies as reagent was evaluated by dot blot in 6 patients with progressive disseminated histoplasmosis (PDH), of whom all had AIDS. Antigen was detected in urine from all 6 (100%) PDH patients. Urine samples from a pool of 20 healthy individuals did not react with the anti-Hcp100 antibodies. The dot blot assay performed in this study provides preliminary data of a simple technology that can be performed in medical institutions with limited resources to facilitate the rapid diagnosis of histoplasmosis, particularly the disseminated forms. Hence, use of these assays may provide a rapid diagnostic tool of PDH in endemic areas for histoplasmosis where PDH-related mortality is high, hastening treatment and improving patient survival. Finally, this novel antigen and its specific antibodies may provide an alternative diagnostic reagent to the largely unknown and poorly characterized polysaccharide antigens (HPA, galactomannan, histoplasmin) frequently used in the diagnostic tests. KEY POINTS: Few antigens are used as laboratory tools for the immunodiagnosis of histoplasmosis. P. pastoris was an excellent system for recombinant Hcp100 expression. Maximum expression levels of rHcp100 were achieved in BSM with 1% casamino acids. Dot blot assays with anti-rHcp100 antisera can be successfully used for diagnosing PHD.
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Affiliation(s)
- María A Toscanini
- Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología (NANOBIOTEC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Daniel González Maglio
- Facultad de Farmacia y Bioquímica. Cátedra de Inmunología, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Estudios de la Inmunidad Humoral (IDEHU), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Paula Capece
- Laboratorio de Micología. Hospital Nacional Profesor Alejandro Posadas, Buenos Aires, Argentina
| | - Gladys Posse
- Laboratorio de Micología. Hospital Nacional Profesor Alejandro Posadas, Buenos Aires, Argentina
| | - Cristina A Iovannitti
- Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM), Universidad de Buenos Aires. CONICET, Buenos Aires, Argentina
| | - Alejandro D Nusblat
- Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología (NANOBIOTEC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María L Cuestas
- Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM), Universidad de Buenos Aires. CONICET, Buenos Aires, Argentina.
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Nacher M, Adenis A, Abboud P, Djossou F, Demar M, Epelboin L, Couppié P. HIV patients dying on anti-tuberculosis treatment: are undiagnosed infections still a problem in French Guiana? BMC Res Notes 2020; 13:209. [PMID: 32276647 PMCID: PMC7149834 DOI: 10.1186/s13104-020-05054-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 03/31/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Despite scaling-up testing and antiretroviral treatment in Latin America, advanced HIV remains a significant public health problem. The objective of the present study was look for historical risk factors for death in French Guiana's HIV cohort taking into account the immunological status, the main opportunistic infections, and their treatment. A retrospective cohort study was conducted on data collected between 1992 and 2008 to identify factors associated with death in a cohort 2323 patients. RESULTS There were 370 deaths for a total 9608 patient-years. Being on tuberculosis treatment was associated with a greater hazard of death. The diagnosis of confirmed tuberculosis, of histoplasmosis, of toxoplasmosis, and pneumocystosis were independently associated with death. Interactions terms between cotrimoxazole treatment and pneumocystosis, or between confirmed tuberculosis and tuberculosis treatment showed a protective treatment-effect. All patients having received anti-tuberculosis treatment (n = 347) did not have a final diagnosis of tuberculosis (n = 93). For histoplasmosis, 199 patients received antifungal treatment while 141 were diagnosed as having histoplasmosis. The number of patients on anti-tuberculosis drugs was far greater that the number of patients with confirmed tuberculosis, and these patients on treatment without confirmed tuberculosis had a twofold greater risk of dying.
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Affiliation(s)
- Mathieu Nacher
- Centre d'Investigation Clinique, CIC INSERM 1424, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana. .,Département de Formation et de Recherche Santé (DFR Santé), Université de Guyane, 97300, Cayenne, French Guiana.
| | - Antoine Adenis
- Centre d'Investigation Clinique, CIC INSERM 1424, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Philippe Abboud
- Department of Infectious and Tropical Diseases, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Felix Djossou
- Département de Formation et de Recherche Santé (DFR Santé), Université de Guyane, 97300, Cayenne, French Guiana.,Department of Infectious and Tropical Diseases, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Magalie Demar
- UMR Tropical Biome and Immuno-pathophysiology, Université de Guyane, 97300, Cayenne, French Guiana.,Parasitology and Mycology Laboratory, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Loïc Epelboin
- Department of Infectious and Tropical Diseases, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Pierre Couppié
- Département de Formation et de Recherche Santé (DFR Santé), Université de Guyane, 97300, Cayenne, French Guiana.,Department of Dermatology, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
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Crabtree-Ramírez B, Jenkins C, Jayathilake K, Carriquiry G, Veloso V, Padgett D, Gotuzzo E, Cortes C, Mejia F, McGowan CC, Duda S, Shepherd BE, Sterling TR. HIV-related tuberculosis: mortality risk in persons without vs. with culture-confirmed disease. Int J Tuberc Lung Dis 2020; 23:306-314. [PMID: 30871661 DOI: 10.5588/ijtld.18.0111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) diagnosis in human immunodeficiency virus (HIV) positive persons is difficult, particularly in resource-limited settings. The relationship between TB culture status and mortality in HIV-positive persons treated for TB is unclear. METHODS We evaluated HIV-positive adults treated for TB at or after their first HIV clinic visit in Argentina, Brazil, Chile, Honduras, Mexico or Peru from 2000 to 2015. Anti-tuberculosis treatment included 2 months of isoniazid, rifampicin (RMP)/rifabutin (RBT), pyrazinamide ± ethambutol, followed by continuation phase treatment with isoniazid + RMP/RBT. RESULTS Of 759 TB-HIV patients, 238 (31%) were culture-negative, 228 (30%) had unknown culture status or did not undergo culture and 293 (39%) were culture-positive. The median CD4 at TB diagnosis was 96 (interquartile range 40-228); 636 (84%) received concurrent antiretroviral therapy (ART) and anti-tuberculosis treatment. There were 123 (16%) deaths: 90/466 (19%) with TB culture-negative, unknown or not performed vs. 33/293 (11%) who were TB culture-positive (P = 0.005). In Kaplan-Meier analysis, mortality in TB patients without culture-confirmed disease was higher (P = 0.002). In a Cox model adjusted for age, sex, CD4, ART timing, disease site and stratified by study site, mortality in persons without culture-confirmed TB was not significantly increased compared to those with culture-positive TB (hazard ratio 1.39, 95%CI 0.89-2.16, P = 0.15). CONCLUSION Most HIV-positive patients treated for TB did not have culture-confirmed TB, and mortality tended to be higher in patients without culture-confirmed disease, although the association was not statistically different after adjusting for other variables. Accurate TB diagnosis in HIV-positive persons is crucial.
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Affiliation(s)
- B Crabtree-Ramírez
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - C Jenkins
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - K Jayathilake
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - G Carriquiry
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - V Veloso
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - D Padgett
- Hospital Escuela Universitario and Instituto Hondureño de Seguridad Social, Tegucigalpa, Honduras
| | - E Gotuzzo
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - C Cortes
- Fundación Arriarán, University of Chile School of Medicine, Santiago, Chile
| | - F Mejia
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - C C McGowan
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - S Duda
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - B E Shepherd
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - T R Sterling
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Damasceno LS, Almeida Júnior AMB, Aguiar BDO, Muniz MDM, Almeida MDA, Zancopé-Oliveira RM, Leitão TDMJS. Postpartum histoplasmosis in an HIV-negative woman: a case report and phylogenetic characterization by internal transcribed spacer region analysis. Rev Soc Bras Med Trop 2020; 53:e20190364. [PMID: 31994667 PMCID: PMC7083345 DOI: 10.1590/0037-8682-0364-2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/10/2019] [Indexed: 11/30/2022] Open
Abstract
The present report describes the first case of postpartum disseminated
histoplasmosis in a 24-year-old HIV-negative woman. On the tenth day after
vaginal delivery, the patient presented with dyspnea, fever, hypotension,
tachycardia, and painful hepatomegaly. Yeast-like Histoplasma
capsulatum features were isolated in the buffy coat. The
phylogenetic analysis demonstrated that the fungal isolate was similar to other
H. capsulatum isolates identified in HIV patients from
Ceará and Latin America. Thus, histoplasmosis development in individuals with
transitory immunosuppression or during the period of immunological recovery
should be carefully examined.
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Nacher M. Histoplasmosis in Persons Living with HIV. J Fungi (Basel) 2019; 6:jof6010003. [PMID: 31861334 PMCID: PMC7151178 DOI: 10.3390/jof6010003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/08/2019] [Indexed: 12/16/2022] Open
Affiliation(s)
- Mathieu Nacher
- Centre d’Investigation Clinique Antilles Guyane, Inserm CIC1424, Centre Hospitalier de Cayenne, 97300 Cayenne, French Guiana;
- EA3593 Ecosystèmes Amazoniens et Pathologie Tropicale (EPaT), Université de Guyane, DFR Santé, 97300 Cayenne, French Guiana
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Couppié P, Herceg K, Bourne-Watrin M, Thomas V, Blanchet D, Alsibai KD, Louvel D, Djossou F, Demar M, Blaizot R, Adenis A. The Broad Clinical Spectrum of Disseminated Histoplasmosis in HIV-Infected Patients: A 30 Years' Experience in French Guiana. J Fungi (Basel) 2019; 5:jof5040115. [PMID: 31847076 PMCID: PMC6958354 DOI: 10.3390/jof5040115] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/12/2019] [Accepted: 09/17/2019] [Indexed: 12/22/2022] Open
Abstract
Histoplasmosis is a common but neglected AIDS-defining condition in endemic areas for Histoplasma capsulatum. At the advanced stage of HIV infection, the broad spectrum of clinical features may mimic other frequent opportunistic infections such as tuberculosis and makes it difficult for clinicians to diagnose histoplasmosis in a timely manner. Diagnosis of histoplasmosis is difficult and relies on a high index of clinical suspicion along with access to medical mycology facilities with the capacity to implement conventional diagnostic methods (direct examination and culture) in a biosafety level 3 laboratory as well as indirect diagnostic methods (molecular biology, antibody, and antigen detection tools in tissue and body fluids). Time to initiation of effective antifungals has an impact on the patient's prognosis. The initiation of empirical antifungal treatment should be considered in endemic areas for Histoplasma capsulatum and HIV. Here, we report on 30 years of experience in managing HIV-associated histoplasmosis based on a synthesis of clinical findings in French Guiana with considerations regarding the difficulties in determining its differential diagnosis with other opportunistic infections.
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Affiliation(s)
- Pierre Couppié
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Avenue des Flamboyants, BP 6006, 97300 Cayenne, France; (M.B.-W.); (R.B.)
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
- Correspondence: ; Tel.: +594-594-395325; Fax: +594-594-395041
| | - Katarina Herceg
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
| | - Morgane Bourne-Watrin
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Avenue des Flamboyants, BP 6006, 97300 Cayenne, France; (M.B.-W.); (R.B.)
| | - Vincent Thomas
- Service de Médecine B, Centre Hospitalier de Cayenne, 97300 Cayenne, France; (V.T.); (D.L.)
| | - Denis Blanchet
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier de Cayenne, 97300 Cayenne, France
| | - Kinan Drak Alsibai
- Laboratoire d’Anatomie et Cytologie Pathologique, Centre Hospitalier de Cayenne, 97300 Cayenne, France;
| | - Dominique Louvel
- Service de Médecine B, Centre Hospitalier de Cayenne, 97300 Cayenne, France; (V.T.); (D.L.)
| | - Felix Djossou
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
- Unité de Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97300 Cayenne, France
| | - Magalie Demar
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier de Cayenne, 97300 Cayenne, France
| | - Romain Blaizot
- Service de Dermatologie-Vénérologie, Centre Hospitalier de Cayenne, Avenue des Flamboyants, BP 6006, 97300 Cayenne, France; (M.B.-W.); (R.B.)
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
| | - Antoine Adenis
- Equipe EA3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, 97300 Cayenne, France; (K.H.); (D.B.); (F.D.); (M.D.); (A.A.)
- Centre d’Investigation Clinique Antilles Guyane, Inserm CIC 1424, Centre Hospitalier de Cayenne, 97300 Cayenne, France
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Cáceres DH, Gómez BL, Tobón AM, Chiller TM, Lindsley MD. Evaluation of a Histoplasma antigen lateral flow assay for the rapid diagnosis of progressive disseminated histoplasmosis in Colombian patients with AIDS. Mycoses 2019; 63:139-144. [PMID: 31625627 DOI: 10.1111/myc.13023] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Progressive disseminated histoplasmosis (PDH) is an important cause of mortality in persons living with HIV (PLHIV), especially in countries where patients have limited access to antiretroviral therapies and diagnostic testing. OBJECTIVE A lateral flow assay (LFA) to detect Histoplasma capsulatum antigen in serum developed by MiraVista® was evaluated. METHODS We tested 75 serum samples: 24 from PLHIV and culture-proven PDH and 51 from PLHIV with other fungal and bacterial infections as well as people without HIV. LFA devices were read manually (read by eye) and by an automated reader. RESULTS When the LFA was read manually, sensitivity was 96% and specificity was 90%. When an automated reader was used, sensitivity was 92% and specificity was 94%. The Kappa index comparing manual and automated reader was 0.90. Cross-reactions were observed principally in samples from patients with proven diagnosis of paracoccidioidomycosis. CONCLUSIONS The MiraVista® Diagnostics Histoplasma antigen LFA had high analytical performance and good agreement between manual and automated reader. This LFA allows Histoplasma antigen testing with minimal laboratory equipment and infrastructure requirements.
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Affiliation(s)
- Diego H Cáceres
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Beatriz L Gómez
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Angela M Tobón
- Hospital La Maria, Medellin, Colombia.,Universidad CES, Medellin, Colombia
| | - Tom M Chiller
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Mark D Lindsley
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
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Bongomin F, Kwizera R, Denning DW. Getting Histoplasmosis on the Map of International Recommendations for Patients with Advanced HIV Disease. J Fungi (Basel) 2019; 5:E80. [PMID: 31480775 PMCID: PMC6787619 DOI: 10.3390/jof5030080] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/23/2019] [Accepted: 08/30/2019] [Indexed: 01/10/2023] Open
Abstract
Progressive disseminated histoplasmosis, caused by H. capsulatum, is a life-threatening illness and is an AIDS-defining opportunistic infection. It is neglected, worryingly under-diagnosed, and often misdiagnosed as cancer or tuberculosis with fatal consequences. Globally, over 100,000 cases of disseminated histoplasmosis have been estimated. In 2017, the World Health Organization (WHO) noted that disseminated histoplasmosis is a significant cause of mortality in AIDS patients. Through the rigorous efforts of the Global Action Fund for Fungal Infections (GAFFI) and partners, in 2019, the Histoplasma antigen test was included on the 2nd Edition of the WHO List of Essential Diagnostics. The drugs used in the treatment of histoplasmosis (amphotericin B and itraconazole) are on the WHO Essential Medicine List. The Manaus Declaration on histoplasmosis in the Americas and the Caribbean, where histoplasmosis kills more people with HIV than tuberculosis, advocates for universal access to rapid testing for histoplasmosis and availability of essential drugs for the treatment of histoplasmosis in every country by 2025. Hyperendemic areas are present in the Americas, Caribbean, Southeast Asia, and Latin America. In conclusion, histoplasmosis remains an important clinical and public health problem. To reduce HIV-associated mortality, disseminated histoplasmosis must be addressed through advocacy, increased awareness, and universal access to essential diagnostics and antifungal agents.
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Affiliation(s)
- Felix Bongomin
- Department of Medical Microbiology & Immunology, Faculty of Medicine, Gulu University, P.O. Box 166, Gulu, Uganda.
- Global Action Fund for Fungal Infections, Rue Le Corbusier 12, 1208 Geneva, Switzerland.
| | - Richard Kwizera
- Infectious Diseases Institute, College of Health Sciences, Makerere University, P.O. Box 22418, Kampala, Uganda
- Makerere University Lung Institute, College of Health Sciences, Makerere University, P.O. Box 7749, Kampala, Uganda
| | - David W Denning
- Global Action Fund for Fungal Infections, Rue Le Corbusier 12, 1208 Geneva, Switzerland
- The National Aspergillosis Centre, Wythenshawe Hospital, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M23 9LT, UK
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Loop-mediated Isothermal Amplification and nested PCR of the Internal Transcribed Spacer (ITS) for Histoplasma capsulatum detection. PLoS Negl Trop Dis 2019; 13:e0007692. [PMID: 31449526 PMCID: PMC6730939 DOI: 10.1371/journal.pntd.0007692] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 09/06/2019] [Accepted: 08/06/2019] [Indexed: 12/14/2022] Open
Abstract
Background Histoplasmosis is a neglected disease that affects mainly immunocompromised patients, presenting a progressive dissemination pattern and a high mortality rate, mainly due to delayed diagnosis, caused by slow fungal growth in culture. Therefore, a fast, suitable and cost-effective assay is required for the diagnosis of histoplasmosis in resource-limited laboratories. This study aimed to develop and evaluate two new molecular approaches for a more cost-effective diagnosis of histoplasmosis. Methodology Seeking a fast, suitable, sensitive, specific and low-cost molecular detection technique, we developed a new Loop-mediated Isothermal Amplification (LAMP) assay and nested PCR, both targeting the Internal Transcribed Spacer (ITS) multicopy region of Histoplasma capsulatum. The sensitivity was evaluated using 26 bone marrow and 1 whole blood specimens from patients suspected to have histoplasmosis and 5 whole blood samples from healthy subjects. All specimens were evaluated in culture, as a reference standard test, and Hcp100 nPCR, as a molecular reference test. A heparin-containing whole blood sample from a heathy subject was spiked with H. capsulatum cells and directly assayed with no previous DNA extraction. Results Both assays were able to detect down to 1 fg/μL of H. capsulatum DNA, and ITS LAMP results could also be revealed to the naked-eye by adding SYBR green to the reaction tube. In addition, both assays were able to detect all clades of Histoplasma capsulatum cryptic species complex. No cross-reaction with other fungal pathogens was presented. In comparison with Hcp100 nPCR, both assays reached 83% sensitivity and 92% specificity. Furthermore, ITS LAMP assay showed no need for DNA extraction, since it could be directly applied to crude whole blood specimens, with a limit of detection of 10 yeasts/μL. Conclusion ITS LAMP and nPCR assays have the potential to be used in conjunction with culture for early diagnosis of progressive disseminated histoplasmosis, allowing earlier, appropriate treatment of the patient. The possibility of applying ITS LAMP, as a direct assay, with no DNA extraction and purification steps, makes it suitable for resource-limited laboratories. However, more studies are necessary to validate ITS LAMP and nPCR as direct assay in other types of clinical specimens. Histoplasmosis is a worldwide neglected disease with a high mortality rate associated with HIV/AIDS patients, killing more than tuberculosis in some endemic countries in Latin America. Part of this elevated mortality rate is due to delayed diagnosis and treatment. Here we present two novel methods, one based on Loop-mediated Isothermal Amplification (LAMP) and another on nested Polymerase Chain Reaction (nPCR), for fast, sensitive and specific diagnosis of histoplasmosis. Tests of blood samples spiked with Histoplasma capsulatum suggest the possibility of direct application of the LAMP assay proposed herein to clinical specimens without the need for previous DNA extraction and with the added advantage of naked-eye evaluation of the reaction results. Once the assay has been validated in different clinical specimens, it may be a promising tool for fast histoplasmosis screening.
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Diagnosis of Progressive Disseminated Histoplasmosis in Advanced HIV: A Meta-Analysis of Assay Analytical Performance. J Fungi (Basel) 2019; 5:jof5030076. [PMID: 31426618 PMCID: PMC6787751 DOI: 10.3390/jof5030076] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 12/30/2022] Open
Abstract
Histoplasmosis is an important cause of mortality in people with advanced HIV, especially in countries with limited access to diagnostic assays. Histoplasmosis can be diagnosed using culture, histopathology, and antibody, antigen, and molecular assays. Several factors may affect the analytical performance of these laboratory assays, including sample type, clinical stage of the disease, and previous use of antifungal treatment, among others. Here we describe the results of a systematic literature review, followed by a meta-analysis of the analytical performances of the diagnostic laboratory assays employed. Our initial search identified 1631 references, of which 1559 references were excluded after title and abstract screening, leaving 72 references identified as studies relevant to the validation of histoplasmosis diagnostic assays. After evaluating the full text, 30 studies were selected for final review, including one paper not identified in the initial search. The meta-analysis for assay analytical performance shows the following results for the overall sensitivity (Sen) and specificity (Spe) of the various methods evaluated: Culture, Sen 77% (no data for specificity calculation); antibody detection assays, Sen 58%/Spe 100%; antigen detection assays, Sen 95%/Spe 97%; and DNA detection assays (molecular), Sen 95%/Spe 99%. Of the 30 studies reviewed, nearly half (n = 13) evaluated Histoplasma antigen assays, which were determined to be the most accurate methodology for diagnosis of progressive disseminated histoplasmosis in advanced HIV (inverse of the negative likelihood ratio was 13.2). Molecular assays appear promising for accurate diagnosis of histoplasmosis, but consensus on exact techniques is needed. Cultures showed variable sensitivity related to sample type and laboratory handling. Finally, antibody assays presented high specificity but low sensitivity. This poor sensitivity is most likely due the highly immunosuppressed state of this patient population. Diagnostic assays are crucial for accurate diagnosis of progressive disseminated histoplasmosis (PDH) with advanced HIV disease.
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Caceres DH, Valdes A. Histoplasmosis and Tuberculosis Co-Occurrence in People with Advanced HIV. J Fungi (Basel) 2019; 5:E73. [PMID: 31404979 PMCID: PMC6787747 DOI: 10.3390/jof5030073] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/05/2019] [Accepted: 08/07/2019] [Indexed: 12/11/2022] Open
Abstract
Distinguishing between histoplasmosis, tuberculosis (TB), and co-occurrence of disease is a frequent dilemma for clinical staff treating people with advanced Human Immunodeficiency Virus (HIV) infection. This problem is most frequently observed in clinical settings in countries where both diseases are endemic. It is also a challenge outside these endemic countries in HIV clinics that take care of patients coming from countries with endemic histoplasmosis and TB. The gold standard for diagnosis of both of these diseases is based on conventional laboratory tests (culture, histopathology and special stains). These tests have several limitations, such as lack of laboratory infrastructure for handling isolates (biosafety level 3), shortage of laboratory staff who have appropriate training and experience, variable analytical performance of tests and long turn-around time. Recently, novel rapid assays for the diagnosis of histoplasmosis and TB became available. However, this technology is not yet widely used. Mortality in immunocompromised patients, such as people with advanced HIV, is directly linked with the ability to rapidly diagnose opportunistic diseases. The aim of this review is to synthesize the main aspects of epidemiology, clinical characteristics, diagnosis and treatment of histoplasmosis/TB co-occurrence in people with advanced HIV.
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Affiliation(s)
- Diego H Caceres
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, 11011 Bogota, Colombia.
| | - Audrey Valdes
- Service de Maladies Infectieuses et Tropicales, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana.
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Lebowitz D, Celi L, Tshikung ON, Starobinski M, Chappuis F, Serratrice J. Fever of un-Swiss origin. Presse Med 2019; 48:740-744. [PMID: 31130333 DOI: 10.1016/j.lpm.2019.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/20/2019] [Accepted: 05/07/2019] [Indexed: 11/29/2022] Open
Affiliation(s)
- Dan Lebowitz
- Geneva university hospitals, division of general internal medicine, 1205 Geneva, Switzerland.
| | - Letizia Celi
- Geneva university hospitals, division of general internal medicine, 1205 Geneva, Switzerland
| | | | - Michel Starobinski
- Geneva university hospitals, division of hematology, 1205 Geneva, Switzerland
| | - François Chappuis
- Geneva university hospitals, division of tropical and humanitarian medicine, 1205 Geneva, Switzerland
| | - Jacques Serratrice
- Geneva university hospitals, division of general internal medicine, 1205 Geneva, Switzerland
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46
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Kapatia G, Gupta P, Harshal M, Usha D, Rajwanshi A. Isolated lymph nodal histoplasmosis: A rare presentation. Diagn Cytopathol 2019; 47:834-836. [PMID: 31044531 DOI: 10.1002/dc.24200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/13/2019] [Accepted: 04/22/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Gargi Kapatia
- Department of Cytology and Gynecological Pathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Parikshaa Gupta
- Department of Cytology and Gynecological Pathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Mandavdhare Harshal
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Dutta Usha
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arvind Rajwanshi
- Department of Cytology and Gynecological Pathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Abstract
Fungal infections throughout the world appear to be increasing. This may in part be due to the increase in the population of patients that are susceptible to otherwise rare fungal infections resulting from the use of immune modulating procedures such as hematopoietic stem cell transplants and drugs like tissue necrosis factor antagonists. Histoplasma capsulatum, an endemic fungus throughout North and South America, is reemerging among HIV+ patients in Central and South America and among patients taking tissue necrosis factor antagonists and other biologics in North America. Fusarium species, a relatively rare fungal infection, is reemerging worldwide in the immunocompromised populations, especially those who are neutropenic like hematopoietic stem cell transplant recipients. A new yeast species is currently emerging worldwide: Candida auris, unknown just a decade ago. It is causing large healthcare-associated outbreaks on four continents and is spreading throughout the world through patient travel. In this review the epidemiology, pathology, detection and treatment of these three emerging and reemerging fungi will be discussed.
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Affiliation(s)
- Shawn R Lockhart
- Mycotic Diseases Branch, Centers for Disease Control and Prevention 1600 Clifton Rd. Mailstop G-11, Atlanta, GA 30333, United States.
| | - Jeannette Guarner
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, United States
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48
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Ramos IC, Soares YC, Damasceno LS, Libório MP, Farias LABG, Heukelbach J, Alencar CHMD, Leitão TDMJS. Predictive factors for disseminated histoplasmosis in AIDS patients with fever admitted to a reference hospital in Brazil. Rev Soc Bras Med Trop 2018; 51:479-484. [PMID: 30133631 DOI: 10.1590/0037-8682-0425-2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/03/2018] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION In many settings, the lack of sensitive biomarkers of disseminated histoplasmosis (DH) leads to a clinical reliance on older diagnostic methods and delayed treatment initiation. The early recognition of DH is critical for survival, especially in patients with human immunodeficiency virus (HIV). This study aimed to identify clinical and laboratory findings associated with the definitive diagnosis of DH in low-income HIV patients in endemic areas. METHODS Febrile AIDS patients with suspected DH who were admitted to a reference hospital in northeastern Brazil from January 2006 to January 2007 were evaluated for clinical and laboratory findings associated with DH diagnosis. RESULTS One hundred seventeen patients with fever were included, and 48 (41%) cases of DH were determined by Histoplasma capsulatum identification. A higher fever (≥38.5ºC), maculopapular/papular rash, splenomegaly, hepatomegaly, wheezing, hemoglobin ≤9.5g/dL, platelets ≤80,000/µL, CD4 count ≤75/µL, aspartate aminotransferase (AST) level ≥2.5 times the upper limit of normal (ULN), lactate dehydrogenase (LDH) ≥5times the ULN; and international normalized ratio (INR) >2 times the ULN were significantly associated with DH. A multivariable analysis identified hepatomegaly [adjusted (a) prevalence ratio (PR)= 1.96; 95% confidence interval (CI): 1.21-3.16), CD4 count ≤75/µL (aPR = 2.02; 95% CI: 1.06-3.83), LDH ≥5 times the ULN (aPR = 2.23; 95% CI: 1.44-3.48), and maculopapular/papular rash (aPR = 1.70; 95% CI: 1.02-2.83) were independent risk factors for DH. CONCLUSIONS These easily assessed parameters can facilitate clinical decision-making for febrile AIDS patients with suspected DH in low socioeconomic and Histoplasma-endemic regions.
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Affiliation(s)
- Isadora Cavalcanti Ramos
- Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - Yuri Coelho Soares
- Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | | | - Mariana Pitombeira Libório
- Hospital São José de Doenças Infecciosas, Fortaleza, CE, Brasil.,Departamento de Saúde Comunitária, Universidade de Fortaleza, Fortaleza, CE, Brasil
| | | | - Jorg Heukelbach
- Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | | | - Terezinha do Menino Jesus Silva Leitão
- Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Hospital São José de Doenças Infecciosas, Fortaleza, CE, Brasil
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Burden of HIV-associated histoplasmosis compared with tuberculosis in Latin America: a modelling study. THE LANCET. INFECTIOUS DISEASES 2018; 18:1150-1159. [PMID: 30146320 DOI: 10.1016/s1473-3099(18)30354-2] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 05/04/2018] [Accepted: 05/25/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Fungal infections remain a major contributor to the opportunistic infections that affect people living with HIV. Among them, histoplasmosis is considered neglected, often being misdiagnosed as tuberculosis, and is responsible for numerous deaths in Latin America. The objective of this study was to estimate the burden of HIV-associated histoplasmosis compared with tuberculosis in Latin American countries. METHODS For this modelling study, we estimated prevalence of previous exposure to Histoplasma capsulatum, HIV-associated histoplasmosis annual incidence, and number of deaths in 2012 in Latin American countries based on historical histoplasmin skin test studies in the general population, with an antigen dilution level of more than 1/10. Studies were identified in a literature search. Data on HIV-associated tuberculosis were extracted from the WHO notifications and outcomes tables and data on people living with HIV were extracted from the UNAIDS report for the year 2012. We systematically propagated uncertainty throughout all the steps of the estimation process. FINDINGS Among 1310 articles identified as of June 1, 2015, 24 articles were included in the study, representing 129 histoplasmin skin test studies led in the general population of Latin American countries. For the year 2012, we estimated a range of 6710 (95% CI 5680-7867) to 15 657 (13 254-18 357) cases of symptomatic HIV-associated histoplasmosis in Latin America. Hotspot areas for histoplasmosis prevalence (>30%) and incidence (>1·5 cases per 100 people living with HIV) were Central America, the northernmost part of South America, and Argentina. According to realistic scenarios, we estimated a range of 671 (95% CI 568-787) to 9394 (7952-11 014) deaths related to histoplasmosis, compared with 5062 (3777-6405) deaths related to tuberculosis reported in Latin America. INTERPRETATION Our estimates of histoplasmosis incidence and deaths are high and consistent with published data. For the first time, the burden of histoplasmosis is estimated to be equivalent in incidence and even higher in deaths when compared with tuberculosis among people living with HIV in Latin America. FUNDING None.
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50
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Multicenter Validation of Commercial Antigenuria Reagents To Diagnose Progressive Disseminated Histoplasmosis in People Living with HIV/AIDS in Two Latin American Countries. J Clin Microbiol 2018; 56:JCM.01959-17. [PMID: 29563205 DOI: 10.1128/jcm.01959-17] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/15/2018] [Indexed: 12/22/2022] Open
Abstract
Histoplasmosis is an important cause of mortality in patients with AIDS, especially in countries with limited access to antiretroviral therapies and diagnostic tests. However, many disseminated infections in Latin America go undiagnosed. A simple, rapid method to detect Histoplasma capsulatum infection in regions where histoplasmosis is endemic would dramatically decrease the time to diagnosis and treatment, reducing morbidity and mortality. The aim of this study was to validate a commercial monoclonal Histoplasma galactomannan (HGM) enzyme-linked immunosorbent assay (Immuno-Mycologics [IMMY], Norman, OK, USA) in two cohorts of people living with HIV/AIDS (PLHIV). We analyzed urine samples from 589 people (466 from Guatemala and 123 from Colombia), including 546 from PLHIV and 43 from non-PLHIV controls. Sixty-three of these people (35 from Guatemala and 28 from Colombia) had confirmed histoplasmosis by isolation of H. capsulatum Using the standard curve provided by the quantitative commercial test, the sensitivity was 98% (95% confidence interval [CI], 95 to 100%) and the specificity was 97% (95% CI, 96 to 99%) (cutoff = 0.5 ng/ml). Semiquantitative results, using a calibrator of 12.5 ng/ml of Histoplasma galactomannan to calculate an enzyme immunoassay index value (EIV) for the samples, showed a sensitivity of 95% (95% CI, 89 to 100%) and a specificity of 98% (95% CI, 96 to 99%) (cutoff ≥ 2.6 EIV). This relatively simple-to-perform commercial antigenuria test showed a high performance with reproducible results in both countries, suggesting that it can be used to detect progressive disseminated histoplasmosis in PLHIV in a wide range of clinical laboratories in countries where histoplasmosis is endemic.
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